Enterprise Architecture Framework

Originating from quite different fields of theory and practice, the terms "Enterprise Ontology" and "Enterprise Architecture" currently belong to the standard vocabulary of those professionals who are concerned with (re)designing and (re)engineering enterprises, thereby exploiting modern information and communication technologies for innovating products and services as well as for optimizing operational performance. Because of the inherent characteristics of modern enterprises, often operating within networks of cooperating enterprises, the task of these professionals can rightly be characterized as having to master unprecedented high complexity. The statement, put forward in the paper, that the current notion of Enterprise Architecture does not offer satisfactory help and thus need to evolve into an effective conceptual tool, is clarified in a historical context. In order to let Enterprise Architecture become a sensible, effective notion, complementary to Enterp...

ion SOA extends the concept of abstraction and encapsulation. Unlike in OO which hides internal details (data and methods), SOA aims at hiding all causes of integration problems. Stal (2002) lists the causes of heterogeneity as “network technologies, devices, and OSs; middleware solutions and communication paradigms; programming languages; services and interface technologies; domains and architectures; and data and document formats.” SOA encapsulates a specific set of discrepancies in its domain of application. By hiding these differences, services within the service oriented architecture can be accessed seamlessly. The differences are typically hidden by using a common set of standards. The differences may be in terms of data structures, communication protocols or platforms. For example, SOA’s that target the Internet as the mode of delivery, will require standards that hide heterogeneity in platforms, while a simple SOA that is part of an operating system such as accessing devices...

0131412752 - Practical Guide to Enterprise Architecture, A - In A Practical Guide to Enterprise Architecture, six leading experts present indispensable technical, process, and business insight into every aspect of enterprise architecture. You'll find start-to-finish guidance for architecting ...

The concept of Service Oriented Architecture (SOA) has had a significant impact not only on software engineering but on the analysis of an organization's business layer as well. In this paper we demonstrate that using the SOA concept into the Enterprise Architecture (EA) framework makes the best of the synergy existing between these two approaches. We will examine the characteristics

Enterprise Architecture (EA) plays a dominant role in today's organizations by providing a holistic view of business, information, systems, and technology. Unfortunately, designing an EA is a very challenging and sophisticated task such that 40% of EA projects usually fail mainly due to either an inconsistent evaluation process or ignoring the planning aspect of evaluation. In this paper, we present a complete survey of various published papers on recent advancements in EA evaluation techniques and discuss the Pros and Cons of each of which. We finally present a set of novel evaluation criteria as well as a Cross-layer Evaluation (CLE) approach, which can consider all the EA layers from the strategy and business architecture to technology architecture. The proposed approach offers tremendous insights into EA and can be easily incorporated into every enterprise with a moderate cost.