JPH07104989A - Data item definition standardizing device - Google Patents

Abstract

PURPOSE:To perform the comparison and extraction of a data item and the replacement work of the data item by a simple operation by performing the replacement of labels so as to refer to the definition of a common record when a data item definition where the common record is defined is extracted and the definition of the common record is selected. CONSTITUTION:A standardizing object investigation means 1 analyzes file assignment information 112 and a source program to be handled in plural source programs and extracts plural definition sentences defining a common record. A standardizing copy preparation means 2 selects one record definition from the record definitions and generates a standard copy 113 A to be the definition of the common record. An item name replacement means 5 generates a standard source 116 by replacing an instruction sentence referring to the standard copy 113 A as for the instruction sentence defining the common record and by replacing the label which is used in the standard copy 113A as for the instruction sentence referring to each data item within the common record.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data item definition (record definition) standardization device, in which common data item definitions in a computer system program are stored in a file different from the source program file. In addition, by substituting an instruction that refers to that file in the source program (in the case of COBOL, an instruction called a copy phrase) (hereinafter, referred to as copy phrase conversion), it becomes easier to search for the effect of corrections during maintenance work. A data item standardization device that enables reduction of the scope of correction and facilitates extraction of basic information for data item definition even when reconstructing a program, and enables efficient maintenance and reconstruction work. Regarding

[0002]

2. Description of the Related Art When standardizing data item definitions in an existing source program, in the prior art, an operator himself can analyze and understand the source program, and which data item definition can be converted into a copy phrase. I was deciding.

[0003]

In such conventional standardization work of data item definition, there is no utility for automating the work, and in particular, comparison and extraction of data items, and standard copy which is a standardized data item. Checking, replacing data items in the source program with copy phrases, etc. requires a heavy work load due to human judgment and processing, and it is difficult to secure sufficient quality.

The object of the present invention is to perform a manual operation by making it possible to perform data item comparison and extraction, standard copy check, and data item replacement work in a standard operation of data item definition by simple operations. It is to reduce the burden.

[0005]

According to the present invention, the file allocation information 112 defining the relationship between a logical file and a physical file handled in a plurality of source programs and the source program are analyzed and shared. Standardization target survey means 1 for extracting a plurality of definition statements that define each record
Then, one is selected from a plurality of record definitions that define the common record extracted by the standardization target investigation means 1, and a standard copy 113A that is the definition of the common record in the plurality of source programs is selected. The standard copy creating means 2 to generate and the command statement that defines a common record in the plurality of source programs is replaced with a command statement that refers to the standard copy 113A, and in the common record in the plurality of source programs. The command name referring to each data item is replaced with the name tag used in the standard copy 113A, and the item name tag replacement means 11 for generating the standard source 116 is provided.

For a common record definition including definitions at different levels in a plurality of source programs, the relative position and the item length of each data item in the record are analyzed and the common record definition is used in the plurality of source programs. The standard copy check means 9 for generating the standard copy 113B, which is the definition of the common record, is provided.

[0007]

The data item definition that defines a common record in a plurality of source programs is extracted by the standardization target investigation means 1, and the operator selects a common record definition from the extracted items. Then, the item name replacement unit 11 replaces the name tag in the plurality of source programs so as to refer to the definition of the common record.

If the common record definition includes definitions at different levels in a plurality of source programs, the standard copy check means 9 analyzes the relative position and item length of each data item in the record. Is
Based on the result, the standard copy 113B defining the common record is generated so that the definition up to the detailed level is included, and based on this, the item name replacement unit 11 uses this in the plurality of source programs. The name tag is replaced so as to refer to the common record definition.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a data item definition standardization device by copy phraseization according to the present invention.
Reference numerals 0 to 116 are files (storage devices) for storing programs, data, etc., 1 to 5 are processing means in the data item standardization device, and 20 is a display device.

Reference numeral 110 is a current status source that is a file that stores a standardization target source program, 111 is a current status copy that is a file that stores a data item definition referenced in the standardization target source program, and 112 is a standardization target program. For files to be referenced and updated in
It is file allocation information that is a command statement that specifies the relationship between the logical file name referenced in the program and the physical file name (for example, which file on which DASD). Reference numerals 113A and 113B are standard copies that are files that store standardized data item definitions generated by the data item standardization device of the present invention.
3A is a standard copy generated during the standardization process, and 113B is a finally generated standard copy.
An attribute information file 114 is a file that stores attribute information of each data item in the data item definition. 1
Reference numeral 15 is a corresponding file that is a file that stores information on how to standardize which data item. 116
Is a standard source that is a file that stores a source program generated by the data item definition standardization device of the present invention.

Reference numeral 1 is a standardization target investigation means for finding and grouping common data items among data items in a plurality of source programs in the current source 110 based on the file allocation information 112. Two
Is a standard copy 113A as a standardized data item by selecting any one of a plurality of data items selected as common data items by the standardization target survey means 1.
It is a standard copy creation means to be stored in. Reference numeral 3 is a data item attribute analysis means for analyzing the attributes of the data item definitions grouped by the standardization target investigation means 1. 4 outputs the correspondence of each data item of the grouped data item definition to the display device 20 based on the result of the data item attribute analysis means 3 to prompt the operator to input and confirm which data item Is a standard copy check means for creating a corresponding file 115 which is a file storing information on whether to standardize. 5
Based on the corresponding file 115, the standard source 116
And an item name tag replacing means for creating a standard copy 113B.

FIG. 2 is a flow chart of the standardization process of the present invention, and FIG. 3 is a diagram showing the relationship between each processing means and the file. This will be described below with reference to FIGS. 2 and 3. In the standardization target survey (S1), the standardization target survey means 1 analyzes the file allocation information 112, associates a physical file (data set) with a logical file, and further, the current source 110 (program). Associates with the record name that indicates the definition of the file format (data item definition) of the logical file defined inside.
At this time, if the copy phrase is used in the definition of the file format, the file name in the current copy 111 is linked. In this way, the current source 1 linked (grouped) with one physical file
The record name in 10 and the file name in the current copy 111 are output to the display device 20. The operator specifies for this display which is the standard copy.

FIG. 4 shows the output of the six items grouped on the display device 20 in the standardization target survey. The member name column means the file names of the current status source 110 and the current status copy 111. In the attribute column, either "PROGRAM" or "COPY" is displayed. If "PROGRAM", it means that the corresponding member name is currently in the source 110, and "COPY"
In the case of “Y”, it indicates that the corresponding member name is in the current copy 111. The program name column is valid only when the corresponding member name has the attribute "PROGRAM",
The program name generated when the corresponding member is compiled is displayed. The record name column shows the record name that is the definition of the data item. The Used Copy Name column shows the member name of the referenced copy if a copy phrase is used in the definition of the data item. In the case of FIG. 4, a PROG called “PROG05”
This indicates that the member "MASTER" is referenced by the copy phrase in the data item definition B-REC of the member of the RAM attribute. The operator inputs "M" to the member to be the standard copy or the data item definition in the member in the instruction field. Further, the operator inputs "D" for the item that is desired to be excluded from the grouping target.

In standard copy creation (S2), the standard copy creation means 2 extracts the member or the data item definition in the member designated by the operator as "M" in FIG. 4 and stores it in the standard copy 113A. Data item attribute analysis (S3)
Then, the data item attribute analysis means 3 uses the current source 11
0, regarding the data item definition of the grouped members in the current copy 111 and the standard copy 113A, the in-record displacement (offset), item length, item attribute (numerical value, character string, etc.) of each data item are analyzed, The result is output to the attribute information file 114.

In the standard copy check (S4), the standard copy check means 4 inputs the attribute file 114,
The attribute information of the current state source 110 and the current state copy 111 and the attribute information of the standard copy 113A, which are grouped as described above, are rearranged using the in-record displacement and item length as keys. Then, the attribute information of the current source 110 and the current copy 111 is compared with the attribute information of the standard copy 113A, and if they match, the correspondence of the name tag of each data item is output to the corresponding file 115. If there is a mismatch as a result of the comparison, the correspondence between the layout of the data item definition that does not match and the layout of the standard copy 112 is output to the display device 20.

FIG. 5 is a standard copy check screen, showing a layout of data item definitions that do not match as a result of comparison,
The display device 20 shows the correspondence with the layout of the standard copy 112.
It is an example output to. The left side is the layout of the standard copy 112, and the right side is the layout of the data item definitions that do not match as a result of the comparison (hereinafter referred to as “corresponding program”). Both refer to the same data item, but standard copy 1 starting at offset "0009"
The 12th data item "MST-DATE" has a mismatch with the corresponding program. From the offset “009” of the standard copy 112, a length of 6 bytes is defined as a date data item, but in the “corresponding program”, the date data item is 2 bytes as the year “A-YY” and the month “A
-MM "is divided into 2 bytes, and day" A-DD "is divided into 2 bytes and defined. By looking at this output, the operator can easily determine that the detailed definition of the date data item in the “corresponding program” should be added to the standard copy 112. Make corrections. FIG. 6 shows the modified standard copy.

Once the standard copy 112 has been modified,
Data item attribute analysis (S3) and standard copy check (S4) are executed, and the current status source 110 and the current status copy 1
The correspondence of the name marks of each data item is output to the corresponding file 115 when the attribute information of 11 and the attribute information of the standard copy 113A match each other. In the comparison processing, the above processing is repeated until there is no mismatch or the operator gives an instruction to end.

In the item name tag replacement (S5), the item name tag replacement means 5 uses the information stored in the corresponding file 115 to copy the name tag of the data item used in the current status source 110 and the current status. Perform the process of unifying the name tag of the data item in the item with the standard copy name tag. As a result, a final standard copy 113B is created from the current status source 110, the current status copy 111, and the standard copy 113A, and a standard source 116 that modifies the current status source 110 and stores the final source program is created.

FIG. 7 shows an example of the current state source 110 before inputting to the standardization device, and FIG. 8 shows an example of the standardization source 115 generated by the standardization device. In FIG. 7, the source program B is a copy phrase (“COPY F
Other source programs A and C have the data item definitions directly described in the source programs themselves. In FIG. 8, the copy phrase (“COPY MASTE
R ”) is used. Also, FIG.
In the source program A, "A-KBN",
Although the same data item as "B-KBN" in the source program B and "C-KBN" in the source program C are referred to by different names, in FIG. 8, the same name "MST-" is used in all the source programs. KBN ".

[0020]

As described above, according to the present invention,
Data item definitions that are commonly used in multiple source programs can be made into a copy phrase, which makes it easier to search the effects of modifications during maintenance work and reduce the scope of modification. Even in the restructuring work, the basic information of the data item definition can be easily extracted, and the maintenance work and the program restructuring work can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a data item definition standardization device of the present invention.

FIG. 2 is a processing flow of a data item definition standardization device.

FIG. 3 is a diagram showing a relationship between processing means and files in a data item definition standardization device.

FIG. 4 is a grouping confirmation screen.

FIG. 5 is a standard copy check screen.

FIG. 6 is a modification example of a standard copy.

FIG. 7 shows an example of a current source.

FIG. 8 shows an example of standard source.

[Explanation of symbols]

 1 ... Standardization target investigation means 2 ... Standard copy creation means 3 ... Data item attribute analysis means 4 ... Standard copy check means 5 ... Item name replacement means 20 ... Display device 110 ... Current status source 111 ... Current status copy 112 ... File allocation information 113A ... Standard copy 113B ... Standard copy 114 ... Attribute information file 115 ... Corresponding file 116 ... Standard source

Claims (2)

[Claims] 1. File allocation information (112) defining a relationship between a logical file and a physical file handled in a plurality of source programs and a plurality of files defining a common record by analyzing the source programs. Of the standardized object investigation means (1) for extracting the definition sentence of, and one selected from the plurality of record definitions defining the common record extracted by the standardized object investigation means (1), Standard copy creating means (2) for generating a standard copy (113A) that is a definition of a common record in the source program, and the standard copy (113A) for the statement statement that defines the common record in the plurality of source programs. ) Is replaced with an instruction statement that refers to each of the data items in the common record in the plurality of source programs. The substituted on are used Name Plate with standard copy (113A), the data item definition standardized apparatus comprising the items Name Plate replacement means for generating a standard source (116) (11). 2. A command statement defining a common record, which includes definitions of different levels in a plurality of source programs, analyzes the relative position and item length of each data item in the record, and Standard copy check means (9) for generating a standard copy (113B) that is a common record definition in the source program, and the standard copy (113B) for the command statement defining the records in the plurality of source programs. The standard statement (116) is replaced with the reference statement, and the statement that references each data item in the records in the plurality of source programs is replaced with the name tag used in the standard copy (113B). The data item definition standardization device is provided with an item name tag replacement means (11) for generating