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Abstract

A program designing method which makes it possible to efficiently design an application-oriented program without errors irrespective of levels of technical skills of engineers. In this program designing method, all types of definition items which are processed by a processing system for specific business use are extracted. Program segments (ASL) with a single function are generated in a form in which a corresponding definition item is used as a keyword and ASLs are control-independent of each other in such a way that each definition item is associated with one ASL. A control program (FAL) is separately generated which combines ASLs with each other in an organic manner by operating and controlling the group of ASLs. Each necessary ASL is activated by use of an array of a plurality of link statements included in FAL, and a source program which satisfies required business processing functions is produced by merging FAL and ASL into one. In this program designing method, when FAL necessary for the system is generated, a necessary FAL configuration is extracted from the previously generated maximum FAL configuration, and each FAL is produced from the thus extracted FAL configuration. By use of a link statement sequence of an FAL program which is determined by a link statement matrix and semantic values included in that matrix, FAL and ASL are merged into one to produce an object source program.

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