Learning from Inconsistency

  • Authors:
  • Steve Easterbrook

  • Affiliations:
  • NASAWVU Software Reseat&Lab, NASA IV&V Facility, 100 University Drive, Fairmont, WV

  • Venue:
  • IWSSD '96 Proceedings of the 8th International Workshop on Software Specification and Design
  • Year:
  • 1996

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Abstract

This position paper argues that inconsistencies that occur during the development of a software specification offer an excellent way of learning more about the development process. We base this argument on our work on inconsistency management. Much attention has been devoted recently to the need to allow inconsistencies to occur during software development, to facilitate flexible development strategies, especially for collaborative work. Recent work has concentrated on reasoning in the presence of inconsistency, tracing inconsistencies with "pollution markers", and supporting resolution. We argue here that one of the most important aspects of inconsistency is the learning opportunity it provides. We are therefore concerned with how to capture this learning outcome so that its significance is not lost. We present a small example of how apprentice software engineers learn from their mistakes, and outline how an inconsistency management tool could support this learning. We then argue that the approach can be used more generally as part of continuous process improvement.