METHOD AND DEVICE FOR SUPPORTING PROGRAM MAINTENANCE AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To efficiently detect an influenced part where a program correction is necessary by keyword-designating a condition that a specified character string is completely or partially matched or a condition that it is unconditionally matched. SOLUTION: When an item name showing a specified item is not unified in a program group to be investigated, item designation is designated as unconditional. The instructions and the constants of a program, which probably become problems when a value taken in the item is changed, are detected. The instructions and the constant which are completely or partially designated as keywords are designated from a terminal 1 by using a retrieval condition designation support tool 2 and are stored as retrieval instruction parameters 3. An objective instruction, an item group used in the objective instruction, a group item group defined to be higher than the item and an item group defined to be lower than the item are extracted by using a retrieval part extraction tool 6 in accordance with the language specification of the program group with the instructed retrieval instruction parameters 3.