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Structural modularity in COBOL programming is achievable through variations of structured programming. The advantages of this approach as shown in a particular case study for a system reprogrammed using a structured approach. This paper also discusses the problems, approaches, techniques associated with the advancement, development, and implementation of structured programming using COBOL '74. Particular attention is given to micromodularity and to the costs, at the instruction level, of using a structured approach. Specific examples using several compilers are presented. Also examined will be those features in COBOL which are detrimental to structured programming and alternatives to using these features. (Author)