Data-Centered Program Understanding
ICSM '94 Proceedings of the International Conference on Software Maintenance
A Maintenance Support System based on High-Level Control-Flow and Data Dependency
APSEC '95 Proceedings of the Second Asia Pacific Software Engineering Conference
Variable Classification Technique and Application to the Year 2000 Problem
CSMR '98 Proceedings of the 2nd Euromicro Conference on Software Maintenance and Reengineering ( CSMR'98)
Living with the 2-digit Year Year 2000 Maintenance Using a Procedural Solution
ICSM '97 Proceedings of the International Conference on Software Maintenance
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This paper introduces a variable classification technique to support the maintenance of COBOL application systems. It classifies program variables according to what domain entities they represent. It supports various types of software maintenance. In a system modification, it is necessary to identify the source code related to the problem at hand properly. This maintenance phase, called the impact analysis, involves significant costs in large-scale business application systems. The variable classification presented here supports finding all variables to be checked and modified. In a system restructuring, the variable classification is needed to restructure data declarations. The behavior of the classification can be changed interactively with several parameters. This paper also presents these parameters and how to set them for each type of maintenance task.