Quality guidelines = designer metrics

  • Authors:

  • David A. Workman;Richard Crutchfield

  • Affiliations:

  • University of Central Florida and Science Application International Corporation, Orlando, Florida;University of Central Florida and Science Application International Corporation, Orlando, Florida

  • Venue:
  • TRI-Ada '94 Proceedings of the conference on TRI-Ada '94
  • Year:
  • 1994

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Abstract

In spite of the significant body of research on traditional source code metrics, there has been a general failure to produce conclusive evidence as to their effectiveness for measuring software quality. We describe and recommend a potentially much more powerful and sensitive quality assessment alternative, software quality guidelines. Software quality guidelines are presented as “designer metrics”, that is, user-defined rules or constraints relating to measurable features of a program's structure, semantics, and syntax that affect its quality. To provide a methodology for designing, applying, and validating software quality guidelines, we recommend and briefly summarize IEEE standard 1061. This standard gives a process for constructing and implementing a software quality metrics framework that can be tailor-made to meet quality requirements for a particular project and/or organization. Our paper then demonstrates how software quality guidelines fit within the IEEE framework and gives an example illustrating how user-defined guidelines can be applied to evaluate or assess the quality of an Ada source unit. This guideline-based assessment of quality is then compared with an analysis based on traditional McCabe and Halstead metrics. Finally, we introduce a tool being developed by SAIC, called AdaReVu, as an effective mechanism for implementing and applying user-defined quality guidelines for Ada source code.