Hitachi, Ltd.

Hitachi System Engineering, Ltd.

Hitachi Software Engineering Company, Ltd.

Hitachi Microcomputer Engineering, Ltd.

Hitachi Microcomputer System, Ltd.

Hitachi Computer Engineering Co., Ltd.

Hitachi Seibu Soft Ware Co., Ltd.

Ichiro Naito

Hiroyuki Maezawa

Hirofumi Danno

Hiroshi Tsukino

Gunji Tsukuda

Takahiko Kobayashi

Hirokazu Mimura

Hidetosi Katumata

Akiko Fukuya

Junko Yamaguchi

Kenichi Ohta

Shinichi Akiba

Kazutoshi Tamura

Takeshi Oshio

Hideo Kamiko

The present invention is a method for extracting and generating hierarchical specification information in which the derivative of data included in already-developed software is hierarchically related and the reusability of data which is stored together with a relating procedure is high. In the method of the present invention, an existing program is analyzed and a data item and a procedure are extracted, and a procedure relating to a data item is stored in relation to the data item, and data items sharing a used area, data items for transferring data, or comparison items are stored as similar items in relation to each other, and key items are selected from the similar items, and a hierarchical specification in which the selected key items are set is generated, and dependent data items are selected from a record having the data items related to the key items, and the selected data items are added as attribute data of the hierarchical specification.

Method for generating hierarchical specification information from

A reverse engineering method for supporting software reuse in generating an upper level software product from a lower level software product allowing the reuse of some software product's among multi-level software products ranging from an upper level data flow to a lower level job flow. The method includes the steps of: generating an upper level software product using a lower level software product; generating relational information between the lower and upper level software products; inputting a request for changing the upper level software product via an input/output interface; changing the upper level software product in response to the change request; and detecting a reusable field of the lower level software product which is not to be changed, in response to a change of the upper level software product. A pair of the lower level software product and the upper level software product comprise an internal design and an external design which is higher in level than coded programs and an external design and detailed requirements a user supplied. Information representative of a reusable field with no change and a field that is not reusable which requires a change of the lower level software product, may be provided. The information is obtained by comparing the upper level software product with the lower level software product.

Method and apparatus for detecting a lower level software reusable

In a support system for software development implemented on a computer, a file input/output distinction related to a utility whose program can not be analyzed is preliminarily registered in the support system, job control language which is the subject of automatic production of a job flow specification is input, the job control language and a source program are analyzed and basic job flow information is produced. A job flow specification is automatically produced by deriving a file input/output distinction from a load module name in the input job control language and one of source program analysis information corresponding thereto, utility information and job control language analysis information.

Method of automatically producing job flow specification

In a system for data processing by use of a processing language controlled by a job control program for coupling a file having at least one data item to a data set, a method of standardizing data items in an existing program stored in a storage and having a procedure part and a data definition part is disclosed. The names of two data items including the source and destination items of moving in the transfer designated in a plurality of data transfer instructions in an existing program are stored in the storage, and the equivalence number attached to the name of the transfer source item of each of the plurality of data transfer instructions is attached to the name of the transfer destination item. If a plurality of files assigned in the data definition part are defined in a single data set, the file equivalence number is attached to the plurality of files in the storage. The starting position and length of the data items are stored in the storage on the basis of the data length for the data item name in the data definition part, and the data item name is changed on the basis of the relative positions therebetween and the equivalence number thereof.

Method of software standardization by unifying and standardizing the

A display method in an information processing device for use in software development support includes the steps of analyzing a software product before change and a software product after change. Respectively forming structure information before change and structure information after change, which consist of software element informations correlated with each other, in accordance with the respective structures of the software products. Forming structure information that forms a union set of the before-change structure information and said after change structure information, which includes all the software element informations before and after change, and appending identification information representative of the manner of change in each software element to the union set structure information. Converting at least a part of the union set structure information into its graphic format so as to be produced together with the representations of the change manners represented by the identification information.

Display method in software development support system

A program change effect indicating method for use in a computer system designed to support the determination of parts to be changed in a program. Change steps associated with the method include; the steps of generating analyzed program information by analyzing a program, the analyzed program information representing attributes of respective statements in the program which constitute the program as well as connections between the statements; generating, in accordance with predetermined program intention determining rules, program intention information representing the intentions of the respective statements in the program from the analyzed program information. Inputting change designating information designated by a user which represents a statement to be changed and the contents of the changes; Further change steps associated with the method includes generating, in accordance with predetermined change detail determining rules, change effect information which identifies statements to be changed in association with the change designated by the user and the contents of the required changes from the program intention information, the information representing the relationship between the statements, and the change designating information; and outputting the change effect information.

Method and system for outputting program change effect information to a

A data name standardizing/unifying system for standardizing the names of data belonging to data items having different names and transferred or compared among data files so as to be unified for programs. For standardizing the data names, names of data items assumed to have same contents are gathered and a table indicating data names to be replaced are generated to be displayed together with prompting for entry of the standard data name to replace. From this table, standardization for data names is accomplished by this replacement of the data name in the programs. For identifying the standardized data names created for the different files, different file names or different and upper file names are added to a division of program which refers to the files.

Data name standardizing system

Growing community of inventors

Tokyo, Japan

Ichiro Naito