Evolving Object-Oriented Designs with Refactorings

  • Authors:
  • Lance Tokuda;Don Batory

  • Affiliations:
  • -;-

  • Venue:
  • ASE '99 Proceedings of the 14th IEEE international conference on Automated software engineering
  • Year:
  • 1999

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Abstract

Refactorings are behavior-preserving program transformations that automate design level changes in object-oriented applications. Our previous research established that many schema transformations, design patterns, and hot-spot meta-patterns are automatable. This research evaluates whether refactoring technology can be transferred to the mainstream by restructuring non-trivial C++ applications. The applications that we examine were evolved manually by software engineers. We show that an equivalent evolution could be reproduced significantly faster and cheaper by applying a handful of general-purpose refactorings. In one application, over 14K lines of code were transformed automatically that otherwise would have been coded by hand. Our experiments identify benefits, limitations, and topics of further research related to the transfer of refactoring technology to a production environment.