Effective design and use of computer decision models
MIS Quarterly
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Software engineering may be defined as the systematic design and development of software products and the management of the software process. Software engineering has as one of its primary objectives the production of programs that meet specifications, and are demonstrably accurate, produced on time, and within budget. This paper in five parts discusses the principles and practices used by the IBM Federal Systems Division for the design, development, and management of software. Part III, on software engineering design practices, deals with activities bounded by requirements definition on one side and program implementation on the other. Three levels of design practices are defined, dealing with construction and verification of software systems, modules within systems, and individual programs. At each stagae, new level of mathematical rigor and precision for creating and evaluating software designs is introduced.