Designing Software for Ease of Extension and Contraction

@inproceedings{Parnas:ICSE78,
  author    = {David Lorge Parnas},
  title     = {Designing Software for Ease of Extension and Contraction},
  booktitle = {ICSE},
  pages     = {264--277},
  publisher = {{IEEE} Computer Society},
  year      = {1978},
}