JPH0273461A - Decentralized data control system - Google Patents

Abstract

PURPOSE:To control and retrieve the data files decentralized among machines of different types by using an information table including the information on designation of the machines that store the data files. CONSTITUTION:A control means 7 decides via an input/output device 8 whether a request received from a user requires the retrieval, the synthesization of names or an operation. Then the control is shifted to a retrieving means 1, a name synthesizing means 2, and an operation means 3 respectively in the case the means 7 confirms each of these requests. If these requests are not confirmed, an error is outputted, the input requests are carried out again. When the control is shifted to the means 1 from the means 7, the input requests are given to the retrieving items. In other words, the user inputs desired items and retrieves the necessary data out of an information table 5. The retrieving results, if decision is true, are outputted to the device 8. While an error message is outputted in the case the retrieving results are not true. Furthermore the places storing the files or the places where the files should be stored can be synthesized by both means 2 and 3. Thus the files can be easily and systematically arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data management system, and particularly to a system for centrally managing data distributed among different types of machines.

[Conventional technology]

Conventionally, this type of data management system has an information table that stores information on various data files and the physical storage file name specified by the user, and a search means to search for the table, all of which are installed on the same machine. It was now possible to obtain the storage location of the created data file.

[Problem to be solved by the invention]

The conventional data management systems mentioned above have the disadvantage that they are limited to managing data files on the same machine, so they cannot manage data files placed in a distributed environment using a network, and the data file storage location is different from that of the user. Since it depends on the input and the application program that uses the data file as input and output, it has the disadvantage that the storage location cannot be uniquely defined, resulting in duplication or scattering.

[Means to solve the problem]

The distributed data management system of the present invention has a database that has an information table that centrally manages various data files distributed on heterogeneous machines, and a naming rule table that defines the storage location of various data files, and a table search. It has a means for synthesizing names of data storage locations, and a means for manipulating tables, enables centralized management and searching of distributed data files, allows data files to be stored systematically without the user being aware of them, and furthermore The system can be easily changed.

That is, the present invention can manage and search data files distributed on different types of machines by preparing an information table that includes specifications of machines that store data files. In addition, by preparing a naming rule table that defines the storage location of various data files, the storage system of the data files can be determined and the data can be uniquely determined. Furthermore, naming allows the data storage system to be easily changed by providing a means for manipulating the rule table.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a configuration diagram when the present invention is applied to input/output data management of an LSICAD tool, in which a search means (1),
Name synthesis means (2), operation means (3), naming rule table (4), information table (5), database for storing tables (6), and control means (7) for controlling the three means. , an input/output device (8).

FIG. 2 is a part of the information table (5), and one row of the table consists of a data identifier (201), a cell name (202), and a storage machine name (203). In this table, a row can be uniquely determined by giving a data identifier and a cell name. Here, the cell name is the name of a unit that logically divides LSICAD input/output data, and the data identifier is a name representing the type of data file. In this figure, one data identifier in one cell is limited to one storage machine, but it can be expanded to multiple machines by slightly changing the configuration of tape l. Additionally, tables containing user information, product information, etc. can be added as information tables.

In Figure 3, naming is a rule table (4), table 01 row is a data identifier (301), storage machine name (30
2), Naming consists of rules (303). A row in this table is uniquely determined by an identifier or machine name.

Figure 4 is a tool input/output table (401) that shows the types of LSICAD tool input/output data, and one row of the table is a tool name (402) and an input data identifier (403).
, an output data identifier (404). Rows in this table are uniquely determined by tool name. Here, the data identifier 201゜301.403,4 in Figures 2 to 4
04 and the storage machine names 203 and 302 have a relationship with each other.

FIG. 5 is a flowchart of the control means (7). The control means are
Waits for input from the user through the input/output device (8) (5
01). If the input is a termination request (502), the process ends, otherwise it is determined whether it is a search request (503).If the 0 determination is true, the input is sent to the search means (1), and it is determined whether it is a name synthesis request (504). If true, the control is transferred to the name synthesis means (2), and if the operation request determination (505) is true, control is transferred to the operation means (3). If the input is not either, an error output (
506) and returns to the input request (501).

FIG. 6 is a flowchart of the search means (1). When control is transferred from the control means to the search means, a search item input request (60
Do 1). When the user inputs the item he/she wants to search, the necessary data is searched from the information table (5) (602
). If the search normality determination (603) is true, the result is output to the input/output device (604), and if it is false, an error message is output. When the output process is completed, the user is asked whether or not to perform the search again (606), and if it is true, the user is asked to input search items (606).
01), and if it is false, the search means is terminated.

FIG. 7 is a flowchart of the name synthesis means (2). When control is transferred from the control means to the name synthesis means, an input request (701) is made for the name of the tool for which the name of the input/output cafe file is to be obtained and the name of the target cell. When the user inputs the tool name and cell name, the identifier of the input data is obtained from the tool input/output table (401) (702).

The information table (5) is searched using the cell name and identifier to see if there is a corresponding row (703). If there is no corresponding line, an error is output (704) and the name synthesis means is terminated. If there is a row, the file name is synthesized from the rule table using the identifier, cell name, and machine name derived from the information table (705), and the synthesized name is output (706). Next, obtain the identifier of the output data from the tool input/output table (401) (70
7) Search the information table (5) using the cell name and identifier to see if there is a corresponding row (708), and if not, add the corresponding row to the information table (5) (709). If there is, the file name is synthesized from the naming rule table using the identifier, cell name, and machine name of the output file (710), and the synthesized name is output (711), and the name synthesis means is terminated. This allows the user to obtain the file name of the input/output data from the target tool and cell name.

FIG. 8 is a flowchart of the operating means (3). When control is transferred from the control means to the operation means, first, a request is made to input the identifier of the naming rule and the machine name to be operated (801). When the user inputs an identifier and a machine name, it is not determined whether the naming rule is in the rule table (802), the user is prompted to modify the naming rule (803), and the table is updated (804). . If not, prompt the user to enter the naming rule (805), add it to the table (80
6) Do. When the process is completed, the user is asked whether or not to continue the operation again (807), and if true, the process returns to inputting the identifier and machine name (801), and if false, the operation means is terminated.

In this way, information tables for various data and naming rules that determine the storage locations of data files distributed on heterogeneous machines are prepared by preparing a rule table, searching means, name composition means, and operation means. It is possible to centrally manage and search data stored in files, and to synthesize the locations where files are stored and where they should be stored in the future, allowing users to easily store files systematically. .

Further, the information table and naming system can be easily changed by placing the rule table on the database and providing an operation means.

Furthermore, as a modification of the embodiment, the cell name in the information table (5) is changed to the module name as shown in FIG. By changing the table as shown in FIG. 10 and changing the tool input/output table (401) as shown in FIG. 11, it is possible to adapt to data management for software development.

In this way, simply changing table components is effective for distributed data management in various development work.

〔Effect of the invention〕

As explained above, when handling various types of data distributed on heterogeneous machines, the present invention creates an information table for each type of data and a naming rule table for determining storage locations in consideration of the machines in a database. By preparing table manipulation means, data storage location name synthesis means, and search means, it is possible to synthesize the locations where files are stored and where they should be stored, making it easy to create systematic files. It has the effect of being able to organize, easily change the data storage system, and centrally manage and search data that is actually distributed.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram when the present invention is applied to input/output data management of LSICAD tools, Figure 2 is a diagram of a part of an information table, Figure 3 is a diagram of a naming rule table, and Figure 4 is a diagram of a naming rule table. Figure 5 is a flowchart of the control means, Figure 6 is a flowchart of the search means, Figure 7 is a flowchart of the name synthesis means, Figure 8 is a flowchart of the operation means, and Figure 9 is a flowchart of the present invention. FIG. 10 is a diagram of a named rule table, and FIG. 11 is a diagram of a tool input/output table. l... search means, 2... name synthesis means, 3... operation means, 4... naming rule table, 5...・Information table, 6...
...Database, 7...Control means, 8...
...Input/output device, 201...Data identifier,
2'02... Cell name, 203... Storage machine name, 301... Data identifier, 302...
... Storage machine name, 303 ... Naming rules, 401 ... Tool input/output table, 40
2...Tool name, 403...Input data identifier, 404...Output data identifier, 50
1... Input request, 502... End determination, 503... Judgment whether it is a search request, 505...
...Determination of whether it is a name synthesis request, 506 ....Determination of whether it is an operation request, 601 ..... Search item input, 60
2...Search, 603...Search normality determination, 604...Result output, 605...
Error output, 606...Search continuation judgment, 701
...Tool name, cell master power, 702...
・Identifier derivation, 703...search for data presence,
704...Error output, 705...Input file name synthesis, 706...Input file name output, 707...Identifier derivation, 708...
... Search for data presence, 709 ... Add to information table, 710 ... Output file name synthesis,
711... Output file name output, 801...
...Identifier, machine master's power, 802...Named determines the presence or absence of rules, 803...Named rules are modified, 804...Table updated, 805...・
...Name is input by rule, 806...Addition to table, 807...Continuation of operation is determined. Agent Patent Attorney Uchihara Uchihara Oto Z Figure 3 Figure 8

Claims (1)

[Claims] A database that has an information table that centrally manages information on various data files distributed on heterogeneous machines, a naming rule table that defines the storage location of various data files, and a search for the information and naming rule table. A distributed data management system comprising: means for synthesizing the name of the data storage location; and means for operating the information and naming rule table.