A case study in cleanroom software engineering: the IBM COBOL Structuring Facility

Abstract

The IBM COBOL Structuring Facility program product was developed using cleanroom software engineering technology in a pipeline of increments with very high quality and productivity. In the cleanroom approach, programs are developed under statistical quality control and mathematical verification is used in place of unit debugging. The formal methods of specification, design, functional verification, and testing are described, together with development and management practices required for maintaining intellectual control over the process.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>