Software Cost Reduction
NAVAL RESEARCH LAB WASHINGTON DC
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Software Cost Reduction SCR is a set of techniques for designing software systems developed by David Parnas and researchers from the U.S. Naval Research Laboratory NRL beginning in the late 1970s. A major goal of the original SCR research team was to evaluate the utility and scalability of software engineering principles by applying the principles to the reconstruction of software for a practical system, the Operational Flight Program OFP for the U.S. Navys A-7 aircraft. The process of applying the principles produced a number of new techniques for software design, which were demonstrated in a requirements document 18 and several software design documents e.g., a module guide 6 for the A-7. Further research during the 1990s produced two formal models, the Four Variable Model 37 and the SCR requirements model 15, and a set of software tools for analyzing SCR-style requirements documents 16.
- Economics and Cost Analysis
- Computer Programming and Software