Computer Supported Cooperative Work 10: 347–372, 2001.
© 2001 Kluwer Academic Publishers. Printed in the Netherlands.
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Designing Work Oriented Infrastructures
OLE HANSETH1 and NINA LUNDBERG2
1 Department of informatics, University of Oslo, Norway (E-mail: ole.hanseth@ifi.uio.no);
2 Department of Informatics, University of Göteborg, Sweden (E-mail: nina@informatik.gu.se)
(Received 21 June 1999)
Abstract. Healthcare is making huge investments in information systems like Picture Archiving and
Communication Systems (PACS) and Radiological Information Systems (RIS). Implementing such
systems in the hospitals has been problematic, the number of systems in regular use is low, and where
the systems are in use the benefits gained are far below what has been expected. This paper analyzes
and identifies a number of challenges one will be confronted with when implementing PACS and
RIS. To deal with these problems it is suggested to consider them as “work oriented infrastructures”.
This term is supposed to draw our attention to the fact that these systems have the same general
characteristics as traditional infrastructures at the same time as they are developed to support specific
work tasks. These are, and should be, designed and implemented primarily by their users based on
their actual use of the technology. Standards are equally important for both work oriented and other
kinds of infrastructures. But in the first case, the standardization process is more of a “cleaning up”
type which follows a period where the infrastructures have been changed in different ways in different
regions or communities.
Key words: artefacts, gateways, healthcare, information infrastructure, work practice
1. Introduction
The introduction of IT into (large) hospitals has been slow and problematic. Electronic Patient Records (EPRs) have been in development since the sixties but
are still not well represented – at least in large hospitals (Berg, 1999). The state
of affairs among general practitioners, however, is the opposite. In Norway, for
instance, close to 100% of them are using EPRs. The idea of Picture Archiving
and Communication Systems (PACS) is also fairly old. The role of these systems
is to store and give access to different kinds of patient related medical images like
X-ray, MRI, CT, ultrasound, etc. And just as in the EPR case, implementing such
systems in the hospitals has been problematic. The number of systems in regular
use is still rather low, and where the systems are in use the benefits gained are far
below what has been expected (Bryan et al., 1998; Peissl et al., 1996; Lundberg,
1999). The aim of this article is to get a better understanding of the challenges of
implementing PACS and RIS systems and how to deal with them. We also believe
that our insights are valid for larger groups of complex information systems and
infrastructures. The paper is based on the hypothesis that the high rate of failures
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among projects aiming at the introduction of PACS into radiology departments
(just like EPRs) is due to the variety, richness, and complexity of work practices
inside hospitals, and the interdependencies between the artifacts and technologies
supporting the work practices. The complexity of and interdependencies between
medical practices and technologies are increasing as medical knowledge increases,
new medical technologies are introduced, new illnesses emerge (ranging from
AIDS to Internet addiction), and the role of chronic diseases is growing. The high
rate of failures among projects aiming at the introduction of PACS into radiology
departments (just like EPRs) is also due to the fact that the systems to be introduced
as well as existing technologies are seen as separate and independent rather than as
parts of complex overlapping infrastructures.
Considering the information systems as well as other technologies in use as
integrated infrastructures gives us new tools and strategies for implementing new
technical solutions. First of all, we might learn from the implementation of other
infrastructures like railroad, power, and telecommunication networks. But we want,
in this paper, to move beyond the characteristics of such “classic” infrastructures.
A careful analysis of the infrastructures used within hospitals will teach us, we
believe, lessons which will be useful in the development and deployment of such
IT solutions. We also believe that these lessons will be helpful in the development
of a larger class of infrastructures. We call this class work oriented infrastructures.
This term draws our attention to the fact that such infrastructures are developed to
support specific work tasks and practices as opposed to the simple and universal
services provided by traditional infrastructures like those mentioned above (i.e.
electric power at a certain voltage, access to telephone networks, water in a pipe,
etc.)
The study is based on ethnographic methods (Hughes et al., 1994), which has
lately become widely recognized within the IS and CSCW fields (Suchman, 1991;
Bellotti and Bly, 1996; Button and Sherrock, 1997; Button and Harper, 1996;
Bowers et al., 1995). When using this research approach the focus is on investigations and understandings of actual work practice in their particular contexts.
The empirical fieldwork was initiated in October 1996 at one radiology department using PACS. Several different qualitative research methods were used for
data collection, including workplace video studies; interviews articulated by the
illustration of video documentation; unstructured interviews; observations and an
integration of discussions-interviews and observations of diagnostic practice and
social interaction. More than 40 hours of video documentation, 45 hours of observations, and 22 interviews of 1 1/2 hour each were conducted. Some participants
were interviewed several times.
2. Information infrastructures
In order to improve our understanding of how different artifacts and technologies
are linked together we will look at collections of artifacts as (information) infra-
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structures (see e.g. Star and Ruhleder, 1996; Hanseth, 1996; Monteiro and Hanseth,
1995). We do not see an infrastructure as some kind of purified technology, but
rather in a perspective where the technology cannot be separated from social and
other non-technological elements, i.e. as an actor-network (see e.g., Callon, 1986;
Latour, 1987; Akrich and Law, 1992).
When approaching information infrastructures we focus on four aspects. Infrastructures are shared resources for a community; the different components of an
infrastructure are integrated through standardized interfaces; they are open in the
sense that there is no strict limit between what is included in the infrastructure and
what is not, and who can use it and for which purpose or function; and they are
heterogeneous, consisting of different kinds of components – human as well as
technological.
An infrastructure emerges as a shared resource between heterogeneous groups
of users. This is opposed to artifacts of which each user has its own private copy,
which each user can use independently e.g. Microsoft Word, Excel, etc. This
distinction can be illustrated by the difference between word processors and the
Internet’s e-mail infrastructure. Each user using a word processor has its own
copy and one user’s use of her system does not interfere with others’. The e-mail
infrastructure of the Internet, however, is one resource shared by all its users. All
e-mails are transferred through the same network (although not necessarily exactly
the same nodes). And how one user uses the infrastructure may affect others. If
one user sends an incredible amount of information, this might jam the network
and cause problems for all.
The different parts of an infrastructure are often acquired by individual actors
and independently. To make the overall infrastructure work, they must fit together.
Accordingly, standardized interfaces (protocols) between components are crucial
for making infrastructures.
Infrastructures are open in the sense that there are no limits for how many users,
computer systems or other technical components etc. that can be linked to it. Infrastructures are heterogeneous socio-technical networks, including many networks
in which both technical and social actors take part. The Internet, for instance, is
composed of several sub-infrastructures: The global TCP/IP network, the e-mail,
news, and Web infrastructures. These networks can partly be seen as separate and
individual infrastructures. However, lots of new infrastructures, for instance infrastructures supporting electronic commerce, are built on top of and integrating these
different sub-infrastructures of the Internet, making them heterogeneous. But they
are also heterogeneous in the sense that they include non-technological elements.
For instance, Internet includes the work of large numbers of support personnel.
Without them the Internet would not work. Accordingly we see infrastructures as
socio-technical webs, as actor-networks.
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3. Radiological work practices and infrastructures
We will in this section describe the work practices within the radiology and the
clinical departments and their collaboration. We also describe the technologies
used – physical artifacts as well as computer systems – and how they are linked
together into infrastructures.
3.1. WORK PRACTICES
The work practices described are observed at the thoracic section at the Radiology department at Sahlgrenska Hospital in Gothenburg, Sweden. We describe the
services delivered to and the communication and interaction with its “customers”
and other activities going on inside the section.
3.1.1. The interaction between the radiology department and its “customers”
The radiology department is a service unit for clinical departments inside the
hospital, for other hospitals, and for primary care units (general practitioners). The
services delivered are radiological examinations and reports based on X-ray and
other types of radiological images. Radiological services are important “tools” for
patient diagnosis, treatment, and intervention.
The different types of radiological examinations offered by the radiology
department are categorized as skeleton, chest, mammography, ultrasound, odontological, gastrointestinal, examinations performed at intensive care units, urinary
tract, vascular examinations, CT and MR. The services defined by the name of a
part of the body (chest, skeleton, etc.) implicitly means X-ray imaging. To order
an examination the “customers” send a paper form, a request (or order), to the
radiology department. The order identifies the patient and specifies the examination
required, the ordering customer (ward, physician), relevant medical information
about the patient, and her demographic data.
When the examination is completed, a report is sent to the ordering unit. The
report is just the original physical paper order with additional information specified
by the radiology department including (Figure 1): (I) the patient name, address
and other demographic data, (II) confirmation of the scheduling with the referral
hospital, (III) patient history – clinical information given by referring physician,
(IV) referring physician’s request of choice of procedure, (V) multiple notations
of the radiographers involved in the examination: examination room used, signature of radiographer and contrast medium given, (VI) preliminary evaluation by
the radiologist who did the examination, (VII) priority as decided and signed by
radiologists, and (VIII) final report signed by radiologist.
In about 10% of the cases the ordering units specify that the (relevant) images
taken should be sent together with the report. Occasionally clinicians request the
images after having received the report.
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Figure 1. A radiological examination request/report.
Clinicians often need more information and help from radiologists than what
can be specified in the report, for which they have regular formal meetings with
each other. At the section we studied there are about nine daily interdisciplinary
meetings, called ‘ward-rounds,’ and three bi-weekly ones. In addition, clinicians
often call radiologists to discuss a patient diagnosis or to get advice while patient
treatment is in progress. Sometimes clinicians also approach radiologists in person
to discuss a particular patient’s diagnosis and condition.
In most acute cases ad-hoc groups of radiologists and other specialists
(surgeons, internists, cardiologists, anesthesiologists, etc.) are established. These
temporary teams are composed of members of specific medical specialties
according to the needs of the patient, and are dissolved after patients’ diagnosis
and treatment.
3.1.2. Inside the radiology department
The work inside the thoracic section of the radiology department is based on
both PACS and RIS1 (radiological information systems). A gateway is developed
enabling the clinician to get access to images in the PACS archive through the
hospital intranet.
The team designing the PACS consisted of a senior radiologist as project leader
and three computer technicians. In addition, students from the departments of
informatics and computer science have worked on the project for periods ranging
from half a year to one year, focusing on the design of the PACS and various
gateways linking the system to its environment.
The image production applications have been purchased from different retailers.
The computer technicians have done the modeling and programming of the gateways between various image production applications and the PACS in close
collaboration with the project leader. The graphical interfaces were specified by
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the project leader on the basis of discussions with the computer technicians,
taking cautious consideration of the heterogeneous work practices in the radiology
department.
In the normal (i.e. non-acute) cases the radiological reports are brought to the
requesting clinical departments by transporters. The primary task of transporters
is to bring bed-bound patients from one department to another. When moving
between departments they also bring with them other goods like orders and reports,
medical records, etc. The transporters put the reports on a table in the administrative
area within the clinical departments. Occasionally the patients themselves, their
parents, or the ordinary postal service are used to bring the documents from clinical
wards, private clinicians, primary care units, and other hospitals.
The activities in the radiology department related to an examination start when
a radiological request form is received. The examination is booked and scheduled
by assigning a room and a radiographer or a radiologist. The receptionist uses the
RIS to check whether the patient has been examined at the department previously,
and the details of the patient’s demographic data, e.g. name, address, date of birth,
and telephone number. If any prior examinations are relevant, he requests the films
from these examinations from the file-room.
The order form is put into a binder notebook. All requests for examinations
are stored in such binder notebooks until the day the examination is taking place.
The binders are stored in shelves in the administrative area. They are organized
according to examination type and date. A glance at the shelves gives an overview
of the scheduled workload for the present week.
The radiographers walk to the shelves to find out whether there are any patients
to be examined and to collect the order forms and x-ray envelopes. The patient
registers herself in the reception area when arriving at the examination day. She is
thereafter directed to a dressing room and/or a laboratory.
Before the examination starts the receptionist has placed prior film (i.e. nondigital) images, in case there are any, in a trolley in the diagnostic area which is
easily available for the radiologists when interpreting the new images.
The radiographer takes the images and verifies that they are of acceptable
quality. The images are then stored in the PACS and administrative personnel bring
the order form to the diagnostic area. The request form is put on a table located in
the area between the corridor and the image interpretation area.
At the thoracic section, there are usually five to six radiologists assigned daily
to the interpretation of the images. This is, however, only one of several tasks they
are doing (others include regular meetings, answering ad-hoc requests from clinicians, participating in multidisciplinary teams in acute cases, etc). Radiological
work – like the work of clinicians – is not office work. They work in meeting
rooms (like those especially designed for ‘ward rounds’), in the image interpretation area, in the imaging labs, etc. A large part of the work is, in fact, done while
moving around in the corridors and other shared open spaces between different
rooms having specific functions. While walking up and down the corridor outside
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Figure 2. A radiologist diagnosing PACS images on workstations.
the image interpretation area, the radiologists can see how big the pile of orders
on the table is. The radiologist fetches the paper orders from the table and sits
down at one of the computer screens being connected to the PACS. With the paper
order at hand she checks whether there are any relevant film images from earlier
examinations. If so, these need to be compared with the images in the PACS. She
will then fetch the films from the trolley and position them in a row at the light
board being located next to the computer screen. Sometimes the radiologist uses
the telephone to request additional images from the archive. She returns to the
workstation and scans the barcode on the order to get an overview of the patient’s
previous radiological examinations. The PACS and RIS are integrated into one
shared user interface. Information about previous examinations as well as their
examination dates is found in the RIS system while images are found in the PACS.
The images are presented in two rows below the RIS information (5 × 5 cm per
image). The images just taken, and images from earlier examinations stored in
the PACS, are presented on two computer screens for detailed examinations. The
radiologist reads and compares the images to complete the diagnosis.
The radiologist enters the reports, when short, directly into the RIS, and thereafter prints the report on a laser printer and puts it into a paper envelope together
with the paper order and thereafter on an ‘out-shelf’ for the requesting unit. In case
of long diagnostic reports the radiologists dictate their reports to typists who later
on register the information in the RIS system. The typists then print the written
report on paper and puts it into the radiologists’ personal shelves. The reports are
checked and signed off by the radiologists and placed in an ‘out-shelf.’
If the ordering unit has specified on the order that they want copies of the
images, analog film images are produced from the PACS on a laser printer and
put into a folder together with the report.
In normal cases the reports are picked up from the out-shelves in the radiology department by transporters and delivered to the ordering departments. The
transporters put the reports on a table in the administrative area at the clinical
departments. The secretaries sort and place the reports in the shelves of individual
clinicians. The clinicians collect the reports from their shelves when passing by
and read them. They write a summary of each report into the medical record. The
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Figure 3. An interdisciplinary meeting at the radiology department.
clinicians put the medical record accompanied with the radiological report on a
table in the administrative area. The secretary brings the medical record to a table
in the file room (archive). Archive clerks sort and place the medical records in their
proper locations in the shelves (determined by the patients’ demographic data). In
emergency cases (and complex ones) the clinicians call the patients and inform
them about their diagnosis and future treatment. In the non-complicated cases (i.e.
out-patients) the diagnostic results may be sent to the patients via mail.
At the daily meetings the order forms are placed in a pile on a table and film
images are placed on light boards. If needed a trolley with additional films are
placed on the floor. A secretary has prepared all this in advance. Additional film
images may also be retrieved from the file-room during the meeting if needed.
After the meeting, secretaries demount the film images and put them in folders
accompanying the orders and place the folders in a trolley to be moved to the
administrative area. These meetings give medical specialists from different wards
a chance to jointly discuss patient diagnosis and treatment.
During ad hoc conversations (and calls) between radiologists and clinicians,
secretaries call the archive and request the images. Archive staff bring film images
to the radiology department, and secretaries help the radiologists to arrange the
material. In addition, secretaries, sometimes, bring the material to a table in the
administrative area. Archive staff fetches, sort and place the material in their proper
places in shelves.
In complex cases, ad hoc discussions about further investigations and interventions are required before a diagnosis can be made and patient treatment can
proceed.
In acute cases, radiological staff may receive an alert preparatory phone call
from the emergency department or another hospital ward prior to the patient’s
arrival at the department. The order form is in these cases either faxed or sent
with the patient. An ad-hoc group of radiologists and other specialists (surgeons,
internists, cardiologists, anesthesiologists, etc.) is established. How such groups
DESIGNING WORK ORIENTED INFRASTRUCTURES
355
operate depends on the patient condition and the overall workload at the hospital.
They often need to develop complex strategies rapidly, and they have to make a
number of “innovations”. For instance, in a car accident with abdominal trauma the
medical staff need to discuss the workup; what diagnostic examination to do; what
tests to take; what life support systems are needed etc. The staff also needs to make
examination rooms available, which in turn may provoke unexpected rearrangements of work context and content. Changes in the patient’s condition may at any
time change the handling.
3.2. RADIOLOGICAL INFRASTRUCTURE
We now turn to the infrastructure supporting the work practices just presented.
3.2.1. The infrastructure supporting the collaboration between the radiology
department and its “customers”
The infrastructure, the foundation, supporting the cooperation between the radiologists and their customers includes, first of all, the physical orders and reports
(which the order forms are transformed into during the examinations) and the
images. We also include in the infrastructure the institutionalized communication forms used: the request/response communication, the daily meetings, and
the ad-hoc conversations. This infrastructure is supported by a more general one
consisting of transporters, trolleys, shelves, tables, personal callers, phones and fax
machines, secretaries, other support staff (medical assistants), PACS, RIS and their
computer and network infrastructure (together referred to as IS on Figure 4), etc.
Seeing orders, reports, images, meetings and ad-hoc conversation as infrastructure is in conflict with a narrow, and rather conventional, understanding of
infrastructure as just material structures like roads, cables (for telephone or electric power transmission), water pipes, etc. But we want to look at the orders and
reports as well as the immaterial phenomena such as meetings and conversations
as infrastructure because
• they constitute together the foundation upon which the collaboration and
division of labour between radiologists and clinicians rest,
• the different elements are linked together in the sense that each of them is
based upon the existence of the others, and the role of each is defined in terms
of how this role fits together with and links with the other elements’ roles.
This infrastructure is linked to and a part of the infrastructure for collaboration between all departments in a hospital. It is also to a large extent part of a
shared infrastructure, foundation, upon which collaboration between all hospitals
and other Healthcare organizations are based.
For these reasons the orders, reports, images, meetings and ad-hoc conversations have all the characteristics of an infrastructure, and we accordingly prefer to
use this term. They are shared resources, or foundations, underlying the collaboration inside the hospital just as the Internet is a resource shared by and supporting
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Figure 4. The radiological information infrastructure.
the cooperation between university students, managers, teenagers, stores, stock
markets, banking, associations, medical staff, etc.
The “top level” infrastructure described above (i.e. the one composed of
orders, reports, images, etc.) only works as such when there is another layer of
infrastructure supporting it. This underlying, supporting, infrastructure is highly
heterogeneous. It consists of physical artifacts, more advanced technologies as well
as humans. For the orders and reports to work as a shared information infrastructure
paper forms must be transmitted between the radiology department and the clinics.
Transporters are bringing the forms from the out-shelf in one department to an
in-shelf in the other. In other words, the transfer is taken care of by a supporting
infrastructure constituted by the combination of transporters and shelves.
In the cases where the patients themselves, parents to the patients or the ordinary
postal service are used when communicating with private clinicians, primary care
units, and other hospitals these actors are also parts of the infrastructure. In the
clinical wards beds, telephones, secretaries, mail services, tables, archives, archive
clerks, and shelves are included in the supporting infrastructure.
At the daily interdisciplinary meetings images are retrieved and processed on
workstations, order forms are placed in a pile on a table, and film images are placed
on light boards. If needed a trolley with additional films is placed on the floor. All
this has been prepared in advance by a secretary. This means that the meetings are
taking place based on a supporting infrastructure composed of a table, light boards,
trolleys, and secretaries.
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During the ad hoc conversations between radiologists and clinicians radiologists often call secretaries or other clerical staff and ask them to collect films
from the archive. In such cases secretaries, clerical staff, the archive, phones, etc.
are included in the supporting infrastructure. In total the transporters, secretaries,
clerical staff, telephones, shelves, tables, and trolleys constitute a shared infrastructure supporting the collaboration around patients between radiologists and
clinicians. Just like the infrastructure consisting of orders, reports, meetings, and
ad-hoc conversations, this one is also open in the sense that it is supporting a wider
range of collaborative activities inside the hospital (partly by being a part of larger
infrastructures of equal components).
3.2.2. The infrastructure inside the radiology department
The request form plays a crucial role as a shared infrastructure for the personnel
working inside the radiology department. It helps coordinating and keeping track of
all main activities. All groups in the department use the order form in various ways
in their work. For instance, radiologists use it when diagnosing patients, radiographers use it when performing the examination, receptionists use it when booking
an examination, secretaries use it when transcribing the radiologists’ reports, etc.
The order is a shared resource used by all these groups. But it also coordinates the
different activities they are carrying out. This coordination partly takes place by
using the order as a medium for representing and storing information. One person
writes information on it, later in the process others use this information when
determining what to do and how. For each step in the radiological examination
process, information is recorded on the order form. This means that the order form
during the examination process also becomes a documentation of what has actually
been done. This documentation can after the examination is finished, be used for
lots of different purposes: quality control, statistics, proving what happened if the
patient sues the hospital for mistreatment, etc.
The order form also coordinates the activities at the department not only as
a medium representing information, but also by means of its physical features.
(For a more detailed analysis of these features, see (Lundberg and Sandahl, 1999).
Closely related analyses are found in Berg’s (1999) discusion of the role played
by the lab order as an independent actor in the ordering process and Mackay’s
(2000) discussion of the role of paper strips in air traffic control.) In particular, the
simple fact that the order form is one single physical object plays a crucial role.
The chain of steps are coordinated as the person carrying out one step puts the
order on a predetermined location when the task is finished. The one carrying out
the next step in the process will then find the order in this position and then do
her task. Locations where the orders are placed include binders put into shelves,
tables, and mailboxes. For instance, after the examination has been performed the
administrative staff at the radiology department places the examination order on a
table in the diagnostic area visible to the radiologist. Usually there will be a pile
of orders on the table, and the new ones are put on the top. When the radiologists
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are walking down the corridor, just a short glance at the table will give him an
overview of the image interpretation work to be done. The visibility of the paper
pile at the table triggers the radiologist to take action. This example also illustrates
how coordination is based on the interplay between different artifacts – the order
and the table. And similarly, shelves, tables and mailboxes are more than storages
of documents. They also inform receivers about progress and status in various
production processes.
3.2.3. Links and interdependencies
The artifacts mentioned above that are involved in the coordination of radiological work are highly interdependent. They are not just individual tools, they are
partly a shared infrastructure in itself, but first of all they are linked to others so
that they together constitute the infrastructure that all radiological work depends
upon.
The shelves, binders, folders, tables, mailboxes are all designed to fit the paper
order form. In the same way light boards, trolleys, and archiving shelves are
designed to fit the radiological images. The order is designed to fit the needs
of all departments concerning communication routines. The tasks of secretaries
and other administrative staff at the radiology and clinical departments are all
designed to fit the communication needs. But they are also shaped by the fact that
this communication is based upon the paper order. The other artifacts used in the
communication also shape the tasks: folders, tables, and mailboxes. The same is
true for the transporters.
The components constructing the radiological information infrastructure
described in this paper are not unique for or isolated to radiological communication. The radiological infrastructure is also a part of a large and open infrastructure
for the whole hospital, and even a shared infrastructure for communication between
all Healthcare units. Inside the hospital there are several service departments in
addition to the radiology department. This includes clinical-chemical and other
(microbiology, laboratories, pathology department, blood bank, etc.) labs. Services
from all these departments are ordered in the same way. Similarly, hospitals send
patients between and order services from each other. Accordingly, the way these
services are ordered need to be standardized and the infrastructure used needs to
be shared.
3.3. CONVERGENCE BETWEEN INFORMATION ARTIFACTS AND CLINICAL
PRACTICE
Above we have described how infrastructures emerge as artifacts are linked
together into long chains. To work properly, the artifacts in the chain must interact.
Further, the chain of artifacts is linked together with the working practices of the
personnel at the departments. The artifacts are linked together with the working
practices of those using the infrastructure in their work, like the radiologists and the
DESIGNING WORK ORIENTED INFRASTRUCTURES
359
clinicians. The chain of artifacts is also linked together with the working practices
of the support personnel being a part of the clinicians and radiologists infrastructure, i.e. the secretaries and administrative staff and the transporters. Their tasks
are to bring the orders from one temporary “storage” (tables, folders, mailboxes)
to another. Further, the structure of the order and the rules for what kind of information that should be documented in it shapes how the specific tasks are carried
out (Latour, 1987; Berg and Bowker, 1997).
The different tasks being a part of the chain of activities related through the
diagnostics and treatment of one patient are linked together and adapted to each
other to make the overall process smooth and efficient. Similarly, the work practices are linked more indirectly because clinical departments need to communicate
and collaborate with all service departments according to the same procedures
to operate smoothly and efficiently, in the same way as all service departments
want to follow the same procedures in their communication and collaboration
with all clinical departments being their customers. Together this means that
the work practices at hospitals are linked together into huge (socio-technical)
networks. In total, artifacts and humans are linked together into a socio-technical
web, an actor-network. And infrastructures and working practices are further
linked into larger networks. For the hospital to work smoothly and efficiently
all elements must be aligned with each other, all networks of networks must be
aligned and convergent (For extensive discussions of this kind of convergence,
see Bowker, 1994; Bowker and Star, 1999; Star et al., in press). Both infrastructures and practices are standardized and institutionalized (Hanseth and Monteiro,
1996).
Infrastructures change over time. But due to their size and complexity, the whole
infrastructure cannot be changed instantly. It changes as some of its parts changes,
but constrained by the fact that the overall infrastructure needs to be aligned. The
same is the case for working practices. This means that infrastructures and working
practices co-evolve slowly over long time, an evolutionary process through a series
of small steps. This pattern is the standard change process for infrastructures. Over
time, work practices and infrastructures are deeply adapted to and embedded into
each other (a process Bernhard Joerges (1988, pp. 29–30) calls “deep ecological
penetration”).
Larger changes take place as the aggregation of numbers of small ones.
They are invisible, as they are not planned as such. That means that links and
interdependencies between separate artifacts and between individual as well as
collections of artifacts (i.e. infrastructures) are often “hidden” and so are links and
interdependencies between practices (Star and Ruhleder, 1996).
4. Designing infrastructures
Based on the analysis of the radiological infrastructures and work practices
described above, we now turn towards design of new infrastructures. We will first
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discuss what we see as the major challenges in infrastructure design in general.
Later on we will address how we can deal with these challenges in the design and
organizational implementation of electronic infrastructures supporting radiological
work.
4.1. CHALLENGES FOR DESIGN OF INFORMATION INFRASTRUCTURES
4.1.1. Standards
If large networks, and large networks of networks, are going to operate smoothly,
they must be convergent and aligned. In technical terms this means standardized.
Communication must take place according to shared, standardized protocols. Work
must follow standardized practices. Conventions and rules, such as the fact that
the paper order form must be placed on a particular table in order to communicate to the radiologist that there is a patient to be diagnosed, are examples of
such standardized protocols. In this case, the placement of paper orders connects
one activity with another activity just as the placement of paper orders in other
predefined shelves connect the radiological network with networks outside the
radiology department. A requirement of an infrastructure is that everyone follows
the same standard. In the standardized radiological network actors rely in their
actions on other actors following the standards. An example of this is the rules for
how different actors should use the orders. Secretaries use the orders to book examinations, radiographers to carry out examinations, radiologists to diagnose patients,
archive staff to archive documents, clinicians to order radiological examinations
and to carry out patient intervention and treatment, etc.
This implies that designing infrastructures means defining standards. This
includes technical standards in terms of communication protocols and coordination
artifacts (Schmidt and Simone, 1996), and standard work practices – i.e. designing
a large actor-network with standardized interfaces.
Designing such networks is, however, no easy task. One difficulty is related
to the fact that infrastructures are open networks, i.e. they are indefinite. The
other problem relates to the design of organizational and human components in
the networks. Organizations (in terms of acting agents, not formal organizational
structures) and humans’ activities cannot just be designed. We now discuss the first
issue, which deals specifically with infrastructures.
4.1.2. Momentum and irreversibility
The larger number of actors communicating, or the larger number of components
linked together, the more important standards are. On the other hand, the larger a
network implementing a standard is, the harder it becomes to change the network.
This is so for the following reasons: Changing the network means changing the
shared standard. The larger a network becomes, the harder it will be to coordinate
all actors’ actions. For a large network, it will become, in practice, impossible to
DESIGNING WORK ORIENTED INFRASTRUCTURES
361
make all agents switch from one standard to another one at the same time. The large
networks communicating using the same standard paper orders and film images
cannot be changed instantly. Another example which all of us is in touch with is
the ongoing transition of the Internet to a new version of the IP protocol. This has
been going on for some years already and it is supposed to take many years still
(Monteiro, 1998).
Changing a network from one standard to another over a longer period means
that different parts of the network are incompatible during that period. Incompatibility means that the network is not aligned – it does not work. However, the
degree of compatibility plays an important role. To make a major change will
cause a major incompatibility between the existing network and the new. Such an
incompatibility causes problems and the intended change will often not take place.
To succeed establishing a new network a new practice must be established, the
new must match the old during the transition period. This implies that the existing
structure constrain how the new can be designed.
The more resources linked to the infrastructure the greater the probability of
resistance to translations. In Healthcare numerous artifacts have over a long time
been linked to the infrastructure. Just consider all the artifacts already surrounding
the paper order in our case; typewriters, shelves, tables, printers, pens, dictaphones, computers, archives, telephones etc., and the different ways work practices
have been shaped according to all these artifacts, as well as the spaces arranged
around them. Other recourses have also been invested in: knowledge and skills
surrounding the paper documents, and the introduction of staff managing the documents: archive staff, administrative staff, medical assistance, etc. The standard for
the paper order supports communication and coordination within and between the
heterogeneous socio-technical networks and is therefore most important in these
socio-technical networks.
To replace the paper order with an electronic version is facing such irreversibility problems. As the paper order links together, in fact, all Healthcare institutions
in a country, the transition must take time. During this change there will be incompatibilities and breakdowns because the paper-based network/protocol does not
interoperate with the ones based on computers. A successful transition will then
require links and some kind of interoperability across these inconsistencies.
4.1.3. Installed base cultivation and gateways
An approach to the management of the change of large networks must take the
existing network, the installed base, as its starting point (Hanseth, 1996). The whole
network can only be changed in a process where smaller parts, sub-networks, are
replaced by new ones while at the same time the new sub-network works together
with the larger network. The success of such an approach depends on the identification of sub-networks which are, first, small enough to be changed in a coordinated
process, second, the sub-networks have so simple interfaces to the larger network
that these interfaces between the new and the old can be manageable. The interfaces
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between two networks will primarily be taken care of in terms of gateways translating between them, or by users being linked to both networks. How this happens
in the introduction and use of PACS at the Sahlgrenska University Hospital will be
described in the next section.
4.2. THE PACS EXPERIENCE
We will now look a bit closer at the introduction and use of the PACS at the thoracic
radiology section. This system was developed in an improvisation (Ciborra, 1996;
Orlikowski, 1996) like process, i.e. through a series of versions where each version
was in use for a period, and the next one was developed based on the users experiences. Through such a process, a system well adapted to users’ needs has been
developed. An important characteristic of this system and an important explanation
of its success, we believe, is the smooth integration between the PACS and the
“system” (or rather: network) based on film images.
The digital system is the primary one internally at the thoracic radiology section.
The instruments generating the images are all based on digital technology. This
means that when the radiographers are “shooting” the images, they are directly
stored in the PACS’s database. The radiologists are also using digital equipment
when interpreting the images. They are however, using the order on paper form to
retrieve the images to be interpreted. This is done by using an electronic bar code
reader to read the bar code, generated by the RIS on the order form. Although the
digital images are the primary ‘tool’ for the radiologist’s diagnoses of a patient, old
analog images are still being used during the comparison of new and old findings.
In addition, analog images must be printed when requested by in-house clinicians,
or when the patient is admitted to the radiology department from other hospitals or
primary care units that do not have PACS. The digital images are then printed from
the PACS onto film via laser printers. The new digital and the old film based infrastructure are integrated through the location of light boards and computer screens
in the radiologists’ image interpretation area, and the printers for printing images.
The systems are also integrated to support the ad hoc discussions between
radiologists and clinicians. The analog images are usually fetched by secretaries
from trolleys and mounted on a light board beside a computer screen. Often during
these discussions, the clinicians want to have the opinion from the radiologist
about how a phenomenon (like a cancer tumor) has changed over time. In such
a discussion, comparing images taken over a long time is crucial. The rooms used
in the radiological rounds are also equipped to enable the comparison of film and
digital images.
After the PACS technology has been in use for a while, both clinicians and
radiologists wanted to extend the system with functions enabling the clinicians to
access the images from PCs at the clinical departments. As the PACS technology
was running on Unix work stations, the software could not just be installed on the
PCs. Instead a gateway was developed converting the images to a format readable
DESIGNING WORK ORIENTED INFRASTRUCTURES
363
by Web browsers (or more precisely, by plug-ins to web browsers). This was a
simple solution developed by a master student within a three-month time span.
The gateway enables the clinicians to access the images via the hospital’s Intranet.
It is our judgement that the PACS implemented at Sahlgrenska University
Hospital has been rather successful. In our view, this success is primarily due to the
way its design supports a network of activities that has a fairly clean and simple
interface to other such networks and how the PACS technology is well integrated
with the technology supporting the other networks.
4.3. EXTENDING THE PACS / RIS INFRASTRUCTURE
We will now discuss how the approach outlined above can be applied to the design
of an infrastructure for electronic orders at Sahlgrenska University Hospital. Such
an infrastructure will have several important advantages as it will speed up the
transmission of orders and reports, the secretaries do not have to register the order
in the RIS, the orders and reports will be more easily accessible when needed,
etc.
The first important issue, then, is to identify the subnetwork to be changed. We
can identify four alternatives. The first subnetwork is the radiology department.
Then we can extend this by including the secretaries at the clinical departments.
This network can be further extended by also including the clinicians, and finally
the external units (i.e. other hospitals and primary care centers) sending patients to
the radiology department for examination.
Which alternative to choose depends on the complexity and costs of changing
the subnetwork and the complexity and costs of the links to the surrounding
networks. We will here briefly discuss the three first alternatives. The first network
is of course simplest, but also the one giving least benefits. The interface to
surrounding networks will be very simple (based on paper orders). It can be seen as
a gateway converting the order/report between paper and digital forms. When the
order arrives at the radiology department, a secretary at the reception will register
its information. When the examination is finished, a paper report will be written
and put in the mailbox to be picked up by a transporter. The gateway in this case
is then composed of a human registering the information and a printer printing the
report. This solution also needs to provide functions supporting the coordination of
the activities inside the radiology department. One solution could be to register the
information in the RIS, but to keep the paper order for the coordination purposes.
One critical issue with this solution is the registration of the order. This has to be
error-free. The order is handwritten by a clinician using medical terminology not
(always) known by the secretaries. This problem can possibly be solved by also
scanning the part of the requisition where the clinician has specified the examination and other relevant medical information about the patient. If the paper order is
used for coordination purposes it will also be available so the radiologists can read
the clinicians’ handwritings.
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In the second alternative, the orders will be filled in electronically at the clinical department, either by a doctor or by a secretary based on a doctor’s dictated
specifications. In this case, the problems related to registration by the secretaries at
the radiology department will not appear. If the radiology department wants to, it
may still print out the order and use the physical paper as a coordinator. The report
will electronically be available (for instance sent by e-mail) to the secretary at the
clinical department when the examination and diagnostics work at the radiology
department is finished. The secretary will then print the report and put it into the
receiving clinician’s mailbox just as today when the report is brought to her by the
transporter. In this case, the gateway between the two networks, the electronic and
the paper based, is the secretary and the printer at the clinical department.
The third alternative extends the second by sending the report straight to the
receiving clinician. In this case, there will not be a gateway between the networks
based on paper and computers respectively. On the other hand, paper based and
electronic networks will indirectly be connected as the clinician will use (be
connected to) two separate networks – an electronic one when communicating
with the radiology department and a paper based one when communicating with
the other labs and service departments.
In some cases, other service departments already have introduced a system
sending their reports to the clinical departments. If so, the radiology department
should adapt their system to the existing one so that the clinician receives the
electronic reports from both departments in the same way. This may happen by
building a gateway between the system receiving the radiological report and the
existing one so that the clinician receives also the radiological reports in the system
they are already using.
The order plays basically two roles – a medium representing information, and
a physical artifact used to coordinate multiple activities (Berg, 1999). The first
role can most easily be played by an electronic order. The coordination role it
plays due to its physical aspects is harder to take over by a computer. Some cases,
however, are not so hard. Radiographers working all day obtaining images may,
for instance, be informed about which patient is the next by a sorted ‘to-do’ list of
patients to be examined. But it is harder to design functions informing radiologists
about the number of patients whose images are waiting to be interpreted and inform
clinicians about the fact that a report has arrived. One could imagine that they could
be informed by sending them e-mail. But hospital doctors are not ordinary office
workers sitting at their desk using their PCs. They are working in different rooms
and locations, which are not their personal working locations. This includes rooms
for examinations, meetings, patients, reception areas, discussing with other doctors
in the corridors, etc. They are everywhere – except in their offices. The computers
they are using are public rather than personal, and they are located in public spaces
like the image interpretation and the reception area in the radiology department.
This implies that conventional models, metaphors, and tools for computer based
communication do not apply.
DESIGNING WORK ORIENTED INFRASTRUCTURES
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If the electronic reports should be sent directly to the clinicians and the paper
order should not be used to inform the radiologists about the number of images
waiting to be interpreted, an electronic system informing the doctors about this
while they are walking (running) up and down the corridors would be crucial. This
functionality might be achieved by using PDAs or other forms of mobile computers
or computer terminals. But such a system could also be implemented by using a
large screen mimicking the table and the pile of orders in the image interpretation area in the radiology department, and a similarly large screen mimicking the
mailboxes (and the reports inside them) at the clinical departments. In addition, the
system should be linked to the rest of the infrastructure at the clinical department to
inform the clinician about the reception of an urgent report. For instance, a message
could be sent to the secretary who then would inform the clinician, or a message
could automatically be sent to her personal caller.
5. Beyond universal service: work oriented infrastructures
Having argued that the design of information systems for hospitals has a lot to
learn from the development of “classical” infrastructures, we will now move one
step further trying to identify features of the paper based radiological infrastructure
which go beyond those of “classical” infrastructures – features whose “design” can
teach us some lessons about the design of electronic radiological infrastructures as
well as others. Taking this step is of crucial importance because implementations
of PACS systems so far seem to contribute to the reproduction of existing practices rather then changing them (Bryan at al., 1998; Tellioglu and Wagner, 1996).
This was also what happened in the case we studied, and that will largely be the
result of the three design proposals presented in section 4.3. In all these examples,
some local changes and benefits may be achieved, but the overall structure stays
unchanged. And, in fact, it may be even harder to change because the practice is
now (i.e. after the implementation of PACS/RIS systems) embedded into larger and
more complex material structures and the socio-technical network that needs to be
changed to improve the practice has become even more irreversible.
We will argue that the radiological infrastructure described in this article has
some features which it has been attributed in order to support specific communities
of practice in their work. In this case we are talking about highly complex and
specialized practices whose properties are largely hidden for those who are not
members of these communities (and which also the members are unconscious
about). We call such infrastructures work oriented infrastructures while the “classical” infrastructures can be called “universal service infrastructures” because they
are providing universal services to all citizens. The services provided by the latter
kind of infrastructures are fairly simple in terms of user interfaces and functionality, used by everybody, and equal for all. Power infrastructures deliver 220 (110)
voltage current, telecommunication infrastructures give us telephone services so
we can call our friends, roads enable us to drive our cars, etc. And the “user needs”
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are fairly well known to everybody and they have hardly changed for hundred
years. (This picture is changing as far as telecommunication is concerned due to all
new services which new digital telecommunication technology opens up for and
which the operators want to sell.)
We believe that these differences account for the fact that the different kinds
of infrastructures have been designed in different ways and also that the design of
new infrastructures of these two kinds requires different design strategies. Classical
infrastructures are, and should be designed, primarily by engineers while work
oriented infrastructures are, and should be, designed and implemented primarily
by their users (and in use). The radiological infrastructure described above is based
on (i.e. implements) standards. But the infrastructure is not built by implementing
a set of standards, which are defined by standardization bodies. The infrastructure
is built in a piecemeal (bit-by-bit) fashion over a long period – new elements
are added to the existing infrastructures and parts are improved or replaced by
improved ones. The changes are carried out by the user communities. There are no
engineers telling the radiographers and radiologists, for instance, that the images
should be stacked on a table and that its height should be used as a medium for
communication and coordination. This specific “communication technology” is
“designed” by radiographers and radiologists over time as they discover the fact
that the paper orders and films they are transferring have features that can be utilized in this way. The aim is to improve technology use through the introduction of
new ways of working and new services. Following Brown and Dugid’s (1994) we
can describe this as a process where a community of practice assigns meaning to
peripheral aspects of the physical artifacts (paper and film). The central attributes
of the paper and the films are their role as media for representation of information
in forms of written text and images. Peripheral issues, like some physical aspects of
the paper and films, are attached shared meanings and turned into borderline issues.
Infrastructures are constructed by linking artifacts together and thereby making
them interdependent. This happens partly by linking their central issues together,
for instance, by assigning orders and films unique identifiers and using them to
specify which sets of orders and films that belongs to the same examination. But
infrastructures may to an even larger extent be constructed by linking artifacts
together by means of their borderline issues. For instance, the coordination and
communication between radiographers and radiologists are using both the order
(and the films) and a table on which the orders are put. This coordination is utilizing
the table not only as a storage paper, but as a storage of paper which can be located
“anywhere”, including the border area between the corridor and the area where
the radiologists are interpreting the images. A large-scale infrastructure emerges as
artifacts are linked together and the work of large communities of practice share
their meanings. Transporters’ primary task, for instance, is to bring patients in bed
from one department (or room) to another. Their traffic between departments was
later seen as a possible resource to be utilized for other means, and accordingly the
DESIGNING WORK ORIENTED INFRASTRUCTURES
367
transmission of paper documents all over the hospital is “piggy-backing” upon the
main service they are delivering.
The radiological infrastructure is designed by its community of practice. We
will argue that this is not just an historical accident – it could not have been
otherwise. This is so because of the complexity of the working practices involved.
To discover, or even understand, the need for improved technological support, one
needs close relationship to existing practices, so close that one has to be involved
in the practice oneself. However, practitioners can tell engineers about limits of
existing technology and their ideas about what improved solutions may look like.
Engineers can then design new solutions, which the medical personnel again can
adopt. This is the traditional understanding of software (technology) development.
This approach works pretty well in many cases, but work oriented infrastructure
design is beyond its limits. The reason for this is that to design such an infrastructure, the engineers cannot develop solutions for a closed group of users but
for more or less the whole Healthcare community. Engineers can design solutions,
which can support existing practices in a better way, but only to a limited extent.
For complex and highly specialized areas like radiology, only those knowing the
area can discover potential improvements. Improved solutions will be discovered
in work. Some improvements will take place as reinterpretation of meanings of
existing technologies (i.e. using it in different ways, for instance additional information could be included in the orders and reports), some as reinterpretation of
existing borderline issues or by constructing new ones, and, finally, some improvements will require changes in the technology itself. Work oriented infrastructures
will be developed through bricolage (Ciborra, 1996) or improvisation (Ciborra,
1996; Orlikowski, 1996) like improvement processes. The difference between
improvisation in the design, or improvement, of “traditional” (or rather standalone) systems like design of the Lotus Notes application that Orlikowskti (1996)
describes, is related to the open character of infrastructures. Contrary to the Notes
application, they are not used by a closed user group, but rather a large (indefinite)
number of connected and overlapping communities of practice. In the collaboration
within and between these communities of practice different but overlapping groups
of services provided by, or parts of, the infrastructure are utilized. One group of
functions or services, or part of the infrastructure, can only be changed in a way
that maintains its compatibility with the other groups of functions it overlaps and
is connected to.
The fact that large numbers of users are sharing the same piece of technology is
usually assumed to imply that this technology should follow one shared universal
standard. This argument has certainly some validity. The fact that all computers
linked to the Internet is running the TCP/IP protocol demonstrates the power of
such an approach. However, defining shared standards supporting the exchange of
medical information is a strategy for building work oriented infrastructures that
has proved to be very problematic (Hanseth and Monteiro, 1997). For more than
fifteen years one has tried to work out standards for exchange of chunks of infor-
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mation like lab orders and reports (including radiological orders and reports). The
proposals that have been worked out have been extremely complex and accordingly
very expensive to implement and use and very hard to change. Existing practices
are inscribed into the standards, and their lack of flexibility implies that they make it
harder to improve existing practice rather than enabling this (ibid.). These problems
seem to be present to very strong degree in the definition and implementation of
EDIFACT messages in general (Graham et al., 1996).
Changes in the infrastructure in terms of changing its meaning or borderline
resources, i.e. without changing the technological solutions in itself, can, of course,
be carried out by the users without involvement of any kinds of experts concerning
the technology used. Concerning the radiological infrastructure described above,
which is based on artifacts and technologies like paper forms, tables, shelves,
etc., the technology is very simple. The users have the required knowledge and
capabilities to change it the way they want. We believe this fact to be an important
explanation for of the successful development of this infrastructure. Heath and Luff
(1992) and Nygren and Henrikson (1992), for instance, document how important
the flexibility of paper documents is in the work of medical personnel. Paper
documents can, for instance, be moved around and showed to patients whatever
positions they are in, physicians can browse through the paper based medical record
extremely fast in the search for relevant information, important information can be
derived from the thickness of the record and what kind of forms it contains, etc.
Further, paper documents are flexible in the sense that whenever needed, physicians
can, when it is relevant, put text into the document beyond what the document
template specifies. This is important in complex cases. But it is also important
because it enables the users to improvise and improve the technology when new
needs appear or opportunities are discovered.
We believe this user control of technology is important for the design of work
oriented infrastructures in general. Computer technology, however, is far more
complex than paper, tables, shelves, etc. However, some computer systems are
more flexible and give more space for the users to find new ways of using the technology to improve their work. The Internet technology introduced at Sahlgrenska
University Hospital to give clinicians access to images in the PACS demonstrates
this. Other hospitals and Healthcare regions are using Internet technology (Web
technology and e-mail) more extensively. Their experience clearly shows the potential of this kind of technology concerning innovative and user driven development
of improved infrastructures and working practices.
Standardization has, however, played an important role in the development of
the paper based radiological infrastructure. The order form, for instance, is in most
countries settled as a standard by national standardization bodies. These standards
specify the layout of the paper form and what kind of information they should
contain. It is important to note, however, that these standards are defined after
paper orders have been used extensively. The standardization process is more of
a “cleaning up” type which follows a period where the orders have been changed
DESIGNING WORK ORIENTED INFRASTRUCTURES
369
in different ways in different regions or communities. When a new standard for the
paper order is defined, it contains the information and structures required in current
practices, at the same time as it has the flexibility required by the users. They can
change the standard when new needs appear and new possibilities for improving
practices are discovered.
Standards will certainly be important in electronic radiological infrastructures
and work oriented infrastructures in general – just like any infrastructure. We
believe, however, that they must, to be successful, be developed in ways similar
to those of the paper based infrastructure. They will have the same “cleaning up”
function. The standards will primarily provide benefits in terms of “cleaning up”
the technology in use and making its future maintenance cheaper and easier. Work
practices will not be changed although some benefits might be obtained because
standardization may enable the scaling up and distribution of successful practices
developed locally.
Gateways are key elements in the evolution of work oriented infrastructures.
They make it possible for users to explore improved versions of large installed
infrastructures at the same as they are using the existing ones. Gateways also enable
smooth upgrading processes where one standard is replaced by another.
6. Conclusion
The objective of this paper has been to illustrate how radiological information infrastructures emerge as artifacts in use are linked together into chains. The chains of
artifacts are also linking together different practices inside the hospital. Individual
activities are also linked together into chains. Further, these chains of artifacts and
activities are linked to working practices of personnel using infrastructures in their
work. The different chains of activities each constitute a subnetwork. These subnetworks, representing different working practices, are also linked. Together this
means that the working practices at hospitals are linked together into huge networks
of networks. To succeed with the implementation of PACS and RIS systems, the
systems must be designed in a way supporting all aspects of the artifacts they will
replace that exiting work practice is based on. Further, they must be designed and
implemented so that they interoperate smoothly with other systems.
Current practices in hospitals are heavily depending on paper. Accordingly,
understanding all roles played by paper documents as well as designing computer
systems that fits together with paper based practices are important success criteria.
We believe that the concept of infrastructure as it is defined and used here is useful
to understand the interdependencies of existing artifacts and technologies, how
these through a process of “deep ecological penetration” typical for all infrastructures have become embedded into the practices and vice versa, and how one part of
the existing infrastructure may be replaced by a computer based sub-infrastructure.
We suggest that the design of PACS and RIS could be improved by considering
these systems as work oriented infrastructures. This term is supposed to draw our
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attention to the fact that these systems are developed to support specific and highly
complex work tasks. We conclude that such infrastructures are, and should be,
designed and implemented primarily by their users based on their actual use of the
technology.
Acknowledgements
We are most grateful to Magnus Bergquist for prior collaborative research. We are
also most grateful to Marc Berg and Sundeep Sahay for comments and discussion.
This work was partly supported by the Swedish Transport & Communications
Research Board (Kommunikations-forskningsberedningen) through its grant to the
“Internet project”.
Note
1. RIS is mainly used for administrative purposes, includes functions for communicating and
managing patient data, managing patient registration, scheduling radiological examinations as
well as creating statistics used for accounting.
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