Architectural Repair of Open Source Software

  • Authors:
  • John B. Tran;Michael W. Godfrey;Eric H. S. Lee;Richard C. Holt

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IWPC '00 Proceedings of the 8th International Workshop on Program Comprehension
  • Year:
  • 2000

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Abstract

As a software system evolves, its architecture will drift. System changes are often done without considering their effects on the system structure. These changes often introduce structural anomalies between the concrete (as-built) and the conceptual (as-designed) architecture, which can impede program understanding. The problem of architectural drift is especially pronounced in open source systems, where many developers work in isolation on distinct features with little co-ordination. In this paper, we present our experiences with repairing the architectures of two large open source systems (the Linux operating system kernel and the VIM text editor) to aid program understanding. For both systems, we were successful in removing many structural anomalies from their architectures.