JPH11327884A - System for re-constituting and using existing system processing information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a re-constituting program and interface information which are easily re-utilized by cutting usable processing from existing system processing information for realizing system re-constituting work in a short period. SOLUTION: A system analyzing and re-constituting part 7 analyzes existing system information 2, temporarily stores it in analyzing information 3, extracts appearing data items and data item generating logic and displays a data flow indicating the generation sequence of the data items on a display device 4. When a required input data item and an output data item are selected, the program of processing starting from a data input to the selected input data item till the generation of the output data item selected in accordance with the generation order of the data items, is re-constituted, interface defining information in conformity with standard specifications for calling the re-constituted program from another application is generated and the both are stored in re-constituting system information 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for analyzing and reconfiguring processing information of an existing system using an electronic computer, and in particular, reconstructing a program so that an existing program can be used in a distributed object environment. The present invention relates to a system for generating interface information for calling a reconfiguration program.

[0002]

2. Description of the Related Art There is known a technique in which processing information of an existing system is analyzed to extract its design information, and the obtained design information is used as basic information for constructing a new system. For example, Japanese Unexamined Patent Publication No. 9-292985 analyzes an existing program by focusing on data items that appear in the existing program, arranges data attributes and operation / constraint conditions for each data item, and reusable data. A technique for generating item information as a component is disclosed.

[0003]

According to the above prior art, it is possible to reuse a data component generated from an existing program as, for example, an object in object-oriented technology in a new system. However, in order to actually use such data components, it is necessary to design the interface part according to the coding specifications of the generated data components, and there is a demand that the rebuilding of the system be realized in a short time. Below, there was a problem that data components could not be easily reused. In particular, there is a demand for a technology that uses a reconfigurable program from an application that runs on a computer of a different model from the computer that runs the existing system without being aware of the coding specifications of the existing program.

An object of the present invention is to provide a system that supports reconfiguring an existing program into a program that can be easily reused.

It is another object of the present invention to provide a system which can use a reconfigured program in a distributed object environment.

[0006]

SUMMARY OF THE INVENTION The present invention is a program stored on a storage medium.
(A) Analyze the program, database definition information, screen definition information, etc., which constitute the existing system, and extract data items used in the existing system and logic for generating the data items, and (b) selected processing For a data item included in the range, a data flow indicating that another data item is sequentially generated from the data item is displayed on a display device, and (c) a selected data item is selected from the data items included in the data flow. Reconstruct a processing program from data input to an input data item to generation of an output data item selected in accordance with the data item generation order, and (d) call the reconfigured program from another application For this purpose, the interface definition with the selected input data item and the selected output data item as parameters It characterized by having a step of generating information.

If the interface definition information is generated according to a standard interface specification independent of the reconfiguration program, it is possible to use the reconfiguration program from another application without being conscious of the coding specification of the reconfigured program. Can be.

The present invention is also a system that utilizes a program reconfigured based on existing system processing information, wherein the reconfigured program and the program for calling up the reconfigured program from another application are provided. A first computer equipped with an interface unit, a second application program connected to the first computer via a network and calling the reconfiguration program, and a second computer equipped with the interface unit And a system having:

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a configuration diagram of a system for analyzing and reconfiguring existing system processing information according to the present embodiment. The existing system information 2, analysis information 3, and reconfigured system information 6 are stored in a storage device connected to the processing device 1 of the computer. The existing system information 2 includes an existing source program, JCL (Job Control Language), database definition, screen definition, and data communication definition. The analysis information 3 is a result of analyzing the existing system information 2 and is analysis information relating to a program, a job, a database, a screen definition, and data communication. And organized. The reconfigured system information 6 is a result of reconfiguring an existing system, and includes a reconfigured source program and an interface definition for calling the executable program. The display device 4 is a device that displays the analysis result of the existing system in the form of a processing flow and a data flow. The input device 5 includes a keyboard for selecting a range of processing to be reconstructed via the processing flow and the data flow displayed on the display device 4, an input data item for passing input data, and an output data item for outputting a processing result. , A mouse, and the like.

The program of the system analysis / reconfiguration unit 7 is stored in the main memory of the processing device 1 and executed by the processing device 1. The system analysis / reconfiguration unit 7 reads the existing system information 2, performs analysis, and outputs analysis information 3. The analysis information 3 is displayed on the display device 4 in the form of a processing flow and a data flow. When a processing range and input / output data items are designated via the input device 5,
Based on this designation, the source program in the processing range is reconfigured, an interface definition for accessing the reconfigured program is created, and both are output as reconfiguration system information 6.

The system analysis / reconstruction unit 7 is stored in a storage medium, and is read into the processing device 1 via a driving device (not shown) connected to the processing device 1, or a drive and network connected to another computer are connected. It can be transmitted to the processing device 1 via the processing device 1 and executed.

FIG. 2 is a flowchart showing a processing procedure of the system analysis / reconfiguration unit 7. The system analysis / reconfiguration unit 7 inputs the existing system information 2, that is, the source program, JCL, database definition, screen definition, and data communication definition that constitute the existing system (step 11), and analyzes and analyzes the existing system information. It is stored in the temporary storage as information 3 (step 12). Depending on the system, those corresponding to the JCL and the data communication definition may be called with different names. Generally, it is information necessary for performing the following processing, and is existing system information to be analyzed. Next, the analysis information 3 is input, and the processing flow information of the existing system, the data items used in the existing system, and the logic for generating the data items are extracted (step 13), and the processing flow information is displayed on the display device 4. (Step 14).

FIG. 3 shows an example of the processing flow information displayed on the display device 4, and shows an example of the processing flow of the travel expense settlement system. In the case of batch processing, the processing order of jobs and programs can be obtained from JCL analysis information. In the case of online processing, the processing order is obtained from the data communication analysis information, and the processing name and the processing order are determined in accordance with the source program.

FIG. 4 shows an example of extracted data item information and data item generation logic, which are represented in a display format. The data item and the data item generation logic are obtained from the analysis information of the source program. The data item name is the name of the data item defined in the program, the record name is the name of the record to which this data item belongs, and the type and number of digits are the type and number of digits of this data item. The usage category classifies whether the associated destination of this data item is a database or a screen definition. The use category is determined from the correspondence between database analysis information, screen definition analysis information, source program analysis information, and data communication analysis information. An operation and a constraint are generation logic of this data item, an operation is an operation of generating this data item, and a constraint is a condition under which the data item is generated. Among the operations and constraints, the names of other data items referred to for generating the data item are shown.

When a process to be utilized in the new system is selected from the process flow information shown in FIG. 3 via the input device 5, the system analysis / reconstruction unit 7 highlights the selected process (step 15). ). In the example of FIG. 3, three processes of domestic travel expense registration processing, domestic settlement processing, and domestic settlement result output processing are selected. Next, the analysis information 3 is input to create a data flow of the target processing range and display it on the display device 4 (step 16).

FIG. 5 is a diagram showing an example of a data flow displayed on the display device 4. Records input from a database (DB) are determined by associating a database definition with a source program. Records input from the screen and records output to the screen are:
It is determined by associating the screen definition, the source program, and the data communication definition. Another record generated from one record is obtained from the analysis information of the source program. “Another process” indicates a process outside the selected processing range.

Next, when a data item to be used as output data in the new system is selected via the input device 5, the system analysis / reconstruction unit 7 highlights the selected data item (step 17). Next, the data items involved in generating the output data item selected within the processing range are highlighted (step 18).

FIG. 6 shows an example of display of target output data items and related data items. In this example, the data items of the near allowance, the far away allowance, the early arrival allowance, the late arrival allowance, and the allowance total of the settlement result record are the selected output data items. In addition, tracking the operations to generate these output data items will highlight and highlight the data items in the domestic travel expense record: Near allowance, Far away allowance, Early leave allowance, Late arrival allowance and Total allowance. The operations for generating these data items are tracked, and the employee No. and class in the employee information record, the business trip date in the travel expense registration record, the departure time, the return time and the area code, the employee No. in the registrant record, and the RULE RULE-class of record, RULE-near allowance, RULE-far allowance, RULE-
Early allowance and RULE-late allowance are identified and highlighted. As a result, the user inputs the highlighted input data items of the employee information record, the travel expense registration record, the registrant record, and the RULE record, and the input entity which is the input data source of these input data items and is highlighted, ie, the employee DB. , Travel expense registration screen, separate processing, rule D
B can be visually identified.

Next, an input entity or input data item required for reconstructing a process to be utilized is selected from the input entity or input data item highlighted through the input device 5 (step 19). . If an input entity is selected, it indicates that the existing database or screen is to be used as it is.If an input data item is selected, a new data item value is used for that input data item without using the existing input data source entity. Indicates that the process is to be passed and executed.

FIG. 7 is a diagram showing an example of a selected input entity and input data items. In this example, the existing rule DB
Is used as it is. For the input data extracted from the employee DB and the travel expense registration screen, the position of the employee information record and the trip date, departure time, return time, and region of the employee information record can be obtained without accessing these existing databases and screens. Indicates that data is passed directly to each input data item in the code. In this way, the existing process is reconfigured into a functional module that can be accessed from an external application program.

Next, the system analysis / reconstruction unit 7 reconstructs a source program by cutting out only processing relating to the input entity, input data item and output data item selected within the selected processing range, and reconstructs the source program. Information 6 is stored in the file (step 20). As for the data item referred to or generated in the selected processing range, the data attribute of the data item and the information of the generation logic as shown in FIG. 4 are extracted. A new source program can be constructed by arranging the generation logic in the generation order of the data items to be referenced or generated from the start to the generation of the selected output data item.

FIG. 8 is an example of extracted data items and data item generation logic similar to that shown in FIG. 4, but two data item generation logics are arranged in the order of the data items to be generated. . That is, the logic for generating the data item "early allowance" is arranged first, and then the logic for generating the data item "total allowance" by referring to the value of "early allowance" is arranged. I have. Regarding the generation logic of "early allowance",
Operation 1 is executed if constraint 1 is satisfied, and operation 2 is executed if constraint 1 is not satisfied.

FIG. 9 shows an example of a source program created by reconstructing an existing source program. In this example, the source program is described in the COBOL language, and the generation logic of “early allowance” and the generation logic of “total allowance” shown in FIG. 8 are expressed by COBOL statements.

Finally, the system analysis / reconfiguration unit 7 generates an interface definition for calling the reconfigured program from another application program and stores it in the file of the reconfiguration system information 6 (step 21). The interface definition includes a function name and a function definition, and the names of input data items and output data items selected in the function definition are set as parameters.

FIG. 10 shows an example of the generated interface definition. In this example, the data item marked with in is an input data item, and its type and number of digits are defined. str
ing is a string type. The data item with “out” is an output data item, and its data type is long. Expand this interface definition in another application program, set the value of the input data item,
By specifying the operation "acquisition of allowance", the reconfigured program can be executed, and the output data item value can be obtained.

FIG. 11 shows CORBA (Common O).
FIG. 1 is a diagram illustrating a configuration example of a system that uses a program reconfigured from another application in a distributed object environment such as an RB architecture. The computer 30 is a computer such as a host computer that carries the reconfigured and compiled program 31 and executes it. The interface 32 is an interface for calling the program 31. The computer 40 is a computer of a different type such as a personal computer that is connected to the computer 30 via a network 50 and has an application program 41 installed and executed. The interface 42 is an interface for calling the program 31. The interface 32 and the interface 42 are, for example, the same interface definition as shown in FIG.
It has been compiled so that it can be executed with 0. When the application program 41 sets a value in an input data item defined in the interface definition and calls the program 31, the program 31 is executed via the interface 42 and the interface 32, and the execution result is transmitted to the interface 32 and the interface 42. Is returned to the application program 41 via In this way, by utilizing the present invention, a part of the existing system is reconfigured as a program module, and an interface definition for calling this program module from another application is defined in the communication specification between objects provided in the distributed object environment. By generating in accordance with the above, processing of the existing system can be easily utilized from a new application.

[0028]

As described above, according to the present invention, the input data items and the output data required for the processing to be reused based on the data flow of the data items extracted from the analysis information obtained by analyzing the existing system processing information Existing programs are reconfigured according to the selection of items, and interface definition information that conforms to standard interface specifications is generated and added, so that reconfiguration programs can be executed from applications running on different models without being aware of the reconfiguration program coding specifications. Can be used, and the period of system restructuring can be shortened.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a system that analyzes and reconfigures an existing system according to an embodiment.

FIG. 2 is a flowchart showing a processing flow of a system analysis / reconfiguration unit 7 of the embodiment.

FIG. 3 is a diagram showing a display example of processing flow information.

FIG. 4 is a diagram illustrating an example of extracted data item information and data item generation logic.

FIG. 5 is a diagram showing a display example of a data flow.

FIG. 6 is a diagram showing a display example of target output data items and related data items.

FIG. 7 is a diagram showing a display example of a selected input entity and input data items.

FIG. 8 is a diagram illustrating an example of data item generation logic arranged in the order of generated data items.

FIG. 9 is a diagram illustrating an example of a reconfigured source program.

FIG. 10 is a diagram illustrating an example of generated interface definition information.

FIG. 11 is a diagram illustrating a configuration example of a system that uses a reconfiguration program from another application.

[Explanation of symbols]

2: Existing system information, 3: Analysis information, 6: Reconfiguration system information, 7: System analysis / reconfiguration unit

Claims (2)

[Claims] 1. A program embodied on a computer-readable storage medium, wherein the program is a program for analyzing and reconfiguring existing system processing information, and includes the following steps: By analyzing the constituent programs, database definition information, screen definition information, etc., data items used in the existing system and logic for generating the data items are extracted, and (b) data items included in the selected processing range A data flow indicating that another data item is sequentially generated from the data item is displayed on the display device, and (c) data to the selected input data item among the data items included in the data flow Program for processing from input to generation of output data items selected according to the generation order of data items And (d) generating interface definition information using the input data item and the output data item as parameters in order to call the reconfigured program from another application. 2. A system utilizing a program reconfigured based on existing system processing information, wherein the system starts with data input to a selected input data item among data items included in the existing program. A reconfigured program in which data items are sequentially generated in accordance with a generation order to generate a selected output data item, and an interface unit for calling the reconfigured program using the input data item and the output data item as parameters And a second application program connected to the first computer via a network and calling the reconfiguration program, and the input data item and the output data item as parameters. Second calculation including an interface unit for calling a reconfiguration program Systems utilizing existing program reconstructed, characterized in that it comprises and.