JPH0934906A - Book management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a book management device capable of performing efficient retrieval without repeating the same referring processing in the case of retrieving books by utilizing attributes and providing the classification structure of the books flexible to the addition of the books. SOLUTION: This book management device is provided with a means 14 for storing abstract index information (meta data) constituted of the location of book data stored in a storage means 11 and the attribute information of the books, the means 17 for storing a correspondence chart for turning the set of indexes for modifying conditions for retrieving the stored meta data and all the meta data pertinent to the conditions of the retrieval in one-to-one correspondence as one record and storing the plural records in the state of a chart and the means 10 for retrieving an item provided with the same retrieval conditions as the specified retrieval conditions from the correspondence chart stored in the storage means 17 corresponding to the specified conditions for retrieving the meta data, extracting all the indexes indexing the meta data matched with the retrieval conditions from the item and outputting them to an input/output device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book management device.

[0002]

2. Description of the Related Art A book management device is a device for managing a data file storing drawing data, technical book data, and other general books. This type of conventional book management device uses an abstract index called metadata, which corresponds to the book to be managed in a one-to-one relationship, and in addition to the location information of the book in various forms, the book form It includes various kinds of information about books, such as information indicating information about the book and attribute information of the book, and it is possible to provide various services by making full use of such information. Among these services, the metadata search service for searching books is the service that users use the most,
It can be said to be a basic service among the book management devices.

The book management device classifies various books into a tree-like hierarchical structure and manages them based on the classification. Each book is
For the case of searching, it is directly associated with the hierarchical node in the tree to which the individual book belongs. Further, the book management device has history information when the contents of the book are revised and relationship information with the book before revision for the purpose of managing the book. Further, it is also possible to perform a book approval process or a transfer process to a related person among a plurality of users.

Using such a book management apparatus, a user can search for a desired book, check the contents, and perform various processes on the book. As a specific method for searching a book, there is a method using information included in metadata. This is to specify the condition by specifying the attribute and its attribute value that are set in advance in the metadata, and narrow down the range of the corresponding metadata,
The method is to finally find the metadata corresponding to the target book. There is also a method of finding the target book by expanding the tree-shaped hierarchical structure that sorts the books from the top layer to the bottom layer and selecting the books associated with the target node in the tree. .

[0005]

The method of searching a book using the attribute value included in the metadata is the most commonly used method as a reference method. However, this method requires exactly the same search processing. There is a problem that it is very inefficient because it needs to be done each time it is referenced.

Further, in the conventional classification by the tree structure,
The tree hierarchy node is directly associated with the book.
Therefore, when creating a book, it is necessary to think about which hierarchical node the book is positioned in order to enable reference by a tree, and at the same time as creating the book, make a relationship with the tree-like hierarchical node. is there. This has no problem if the tree structure is simple and the number of nodes to which the book belongs is small. However, in the case where the tree structure becomes complicated and the number of nodes to which a book belongs is very large, if there is a missing association, the book will not be able to be referenced from the unassociated node. Will end up.

An object of the present invention is to enable efficient retrieval without repeating the same reference processing when retrieving books by using attributes, and to provide a flexible book classification structure for adding books. It is to provide a book management device that can be provided.

[0008]

In order to achieve the above object, a book management apparatus of the present invention is an input / output device, a first storage means for storing book data, and a first storage means. The second storage means for storing the abstract index information including the location of the book data and the attribute information of the book, the condition for searching the abstract index information stored in the second storage means, and the condition for this search. A third storage means for storing a set of indexes for indexing all the abstract index information one-to-one as one record and storing as a correspondence table for storing a plurality of records in the state of the table, and an abstract index designated by the input / output means Items corresponding to the specified search condition are searched from the correspondence table stored in the third storage unit according to the information search condition, and the item is searched. When there is no item that matches the specified search condition in the correspondence table and the first search means that extracts all the indexes that index the abstract index information that matches the search condition from the And a second search means for searching all the abstract index information stored in the third storage means according to the search condition and outputting the search result to the input / output device.
In the book management device configured in this way, by specifying the search condition of the abstract index information, it is possible to obtain the abstract index information of the book that matches the search condition from the correspondence table, so that every time the reference is made, It is no longer necessary to directly search the abstract index information of
An efficient search can be performed. When there is no item that matches the specified search condition in the correspondence table, it can be confirmed by searching all the abstract index information according to the search condition and outputting the search result to the input / output device.

By providing the search condition of the abstract index information using the hierarchical structure and providing the third search means for searching the correspondence table stored in the third storage means,
Since it is possible to set the conditions for classifying books obtained by expanding hierarchies, there is no need to associate hierarchies with books,
Therefore, it is possible to eliminate the need to consider the position in the hierarchy when adding a book.

It is preferable to provide means for updating the corresponding items in the correspondence table stored in advance for these books when the books are added or deleted or the position of the books with respect to the search condition is changed. By doing so, when the book is added or deleted or the position of the condition is changed, the correspondence table of the book can be updated, so that the contents of the correspondence table of the book are always correct for the existing book. Therefore, it is possible to reliably ensure that the result of using this correspondence table at the time of searching the book and the result of directly searching the abstract index information are exactly the same.

By providing means for arranging the order of the items of the correspondence table stored in advance according to the search condition, the items in the correspondence table are arranged in the order of the search condition of the book, so that the specified book A fast search method such as a binary search method can be applied as a method for finding a search condition for a book in the correspondence table that matches the search condition, and the efficiency at the time of searching the correspondence table can be significantly improved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(Structure) FIG. 1 shows an embodiment of a book management apparatus according to the present invention. The book management apparatus of this embodiment includes a book storage unit 11 including a large number of technical book data files 12 in addition to the input / output device 9 and the data processing device 10.
And a metadata storage unit 14 including a metadata file 15 that exists in a one-to-one relationship with each technical book, a metadata search condition 18 and a metadata index that indexes metadata corresponding to the search condition ( M
DI) 19 in the form of a table, and a correspondence table storage unit 17 for storing a correspondence table. The input / output device 9 is a device for inputting search conditions, outputting search results on a screen, and printing out. The data processing device 10 is configured to include a CPU, has a hierarchical condition setting unit to be described later, and is a means for performing a search process or the like in accordance with a search condition input via the input / output device 9 or inputting a search result. It is means for outputting to the output device 9.

FIG. 2 shows an example of the configuration of the correspondence table storage unit 17. This correspondence table is composed of a search condition part 21 that logically describes one search condition 18 and a corresponding MDI part 22 that includes a metadata index (MDI) 19 that indexes metadata that corresponds to the search condition. Composed. With respect to one search condition, these records all the MDIs corresponding thereto as one record 23, and a plurality of such records are collected and made into a database.

FIG. 3 illustrates the relationship between the metadata file 15 and the technical book data file 12. The metadata file 15 includes the book location information 151 indicating the location of each technical book data included in the technical book data file 12, and the book type information 152 indicating the form of the book.
And the book attribute information 153 including the book attribute 154 and its attribute value 155 as needed. The technical book data file 12 is an image file 121, CAD
The data file 122, the word processor data file 123, and the like may take various forms, but the metadata file 15 masks the difference in the form of these data,
It enables unique management of the technical book data file 12.

(Operation) By setting metadata in the metadata file 15, no matter what type of book the file is, by handling the metadata,
Substitute for handling book entities. Also, metadata 1
When the search condition of No. 5 is determined, the index to the metadata that matches the search condition can be set in advance as the metadata index.

According to the book management apparatus of the present invention, the search condition for the book is given through the input / output device 9, so that the technical book corresponding to the condition is given to the data processing apparatus 1.
Reference can be made indirectly by the action of 0. First,
The search condition 18 of the correspondence table storage unit 17 is compared with the search condition given from the input / output device 9, and the record 23 is extracted from the correspondence table of the correspondence table storage unit 17. By the metadata index (MDI) 19 included in the record 23,
The metadata corresponding to the search condition can be indirectly indexed. In the indirectly indexed metadata, the book location information 1 that indicates the location of the entity of the technical book
Since 51 is included, the information can be used to refer to the substance of the technical book.

If there is no record that matches the search condition in the correspondence table of the correspondence table storage unit 17, all the metadata in the metadata file 15 are searched and whether each metadata matches the search condition. Judge whether or not to select the relevant book.

The hierarchical condition setting unit included in the data processing device 10 is a unit for determining a search condition based on a hierarchical structure.
As an example, FIG. 4 shows an example of a hierarchical structure in a nuclear power plant and search conditions determined thereby. In this case, the books are categorized into plants, buildings, and floors from the top. In the figure, "A-1" and "B-1" are shown as plants, buildings "R / B" and "T / B" belonging to the plant "A-1" are shown as buildings, and buildings are shown as floors. Floors "B3F" and "B2F" belonging to "R / B" are shown. In the search condition S1, only the plant layer of the first layer is selected, so "plant = A-1"
Only the condition is set. Further, in the search condition S2, since the layers up to the third floor are selected,
"Plant = B-1, Building = R / B, Floor = B3F"
Is set.

From the metadata contained in the metadata file 15 of the metadata storage unit 14 to the record 23 of the correspondence table
To search for, the book attribute information 151 that the metadata has
Evaluates whether the record matches the search condition 18 of the record. When adding or deleting a book and metadata or changing the position of the book and metadata with respect to the search condition, the correspondence table stored in the correspondence table storage unit 17 is searched and the corresponding record is searched. Change process. In the case of addition in this change processing, the corresponding M
The MDI 19 to be added is added to the DI unit 22 and the record is updated.

When arranging the correspondence tables in the correspondence table storage unit 17, the search conditions 18 are quantified, and the records of the correspondence table of the book are rearranged in the order of smaller amount (that is, "ascending order").

(Effect) (1) With the technical book in the state of the image file 121, the CAD data file 122 and other types,
Even if it is necessary to handle each item individually, by handling the metadata in the same way as the entity of the book, and handling that does not relate to the content of the entity of the book such as search by attribute is the information included in the metadata. By using
Handles all types of books uniformly. (2) Regarding the predetermined search conditions, it is possible to derive a book that meets the search conditions without evaluating all the metadata whether the metadata corresponds to the search conditions. become. (3) Since the search condition can be specified by using the tree structure, the search condition of the book can be specified by narrowing down the target. In addition, since the defined tree and the book do not have a direct relationship but are related by an indirect connection called a search condition, it is possible to increase the number of nodes in the defined tree and add books and metadata. The deletion and the like can be performed independently of each other. (4) Even if processing operations such as adding and updating books and metadata are performed, the same results are always obtained when the correspondence table is used to derive the books that meet the search conditions and when the metadata is directly searched. can do. (5) Since the records in the correspondence table are sorted according to the search conditions, when searching for records that match the search conditions,
It is possible to search efficiently using a method such as a binary search method which is much faster than ordinary order comparison.

[0022]

According to the present invention, various kinds of books can be treated uniquely by the metadata, that is, the abstract index information, and by specifying the search condition of the metadata, the metadata of the book which matches the search condition can be obtained. Can be obtained by searching the correspondence table, so that it is not necessary to directly search all the metadata, and the search efficiency can be significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a book management device.

FIG. 2 is a block diagram showing an embodiment of a correspondence table storage unit.

FIG. 3 is an explanatory diagram for explaining association between abstract index information and technical book data.

FIG. 4 is a diagram showing an embodiment of a hierarchical structure in a nuclear power plant and search conditions determined thereby.

[Explanation of symbols]

 9 Input / output device 10 Data processing device 11 Book storage unit 12 Technical book data 14 Metadata storage unit 15 Metadata (abstract index information) 17 Correspondence table storage unit 18 Search condition 19 Metadata index (MDI) 21 Search condition unit 22 Applicable MDI department 23 record

Claims (4)

[Claims] 1. An input / output device and a first for storing book data
Storage means, second storage means for storing abstract index information including the location of the book data stored in the first storage means and the attribute information of the book, and the abstraction stored in the second storage means. A condition in which index information is searched and all the abstract index information corresponding to this search condition is indexed on a one-to-one basis is set as one record, and a record is stored as a correspondence table that stores a plurality of records in the state of the table. Of the storage means and the correspondence table stored in the third storage means according to the condition for searching the abstract index information designated by the input / output means, and an item having the same search condition as the designated search condition. And extract all the indexes that index the abstract index information that matches the search condition from the item When there is no item that matches the specified search condition in the correspondence table and the first search means to be output to all the abstract index information stored in the third storage means according to the search condition. A book management device comprising a second search means for searching and outputting the search result to the input / output device. 2. A third retrieval means for deciding a condition for retrieving the abstract index information by utilizing a hierarchical structure and retrieving a correspondence table stored in the third storage means. The described book management device. 3. When a book is added or deleted, or when the position of a book with respect to a search condition is changed, a means for updating the corresponding item in the prestored correspondence table of these books is provided. The book management device according to claim 1. 4. The book management apparatus according to claim 1, further comprising means for arranging and storing the order of items in the correspondence table stored in advance according to search conditions.