Metrics and Laws of Software Evolution—The Nineties View.¶

Lehman, M. M., Ramil, J. F., Wernick, P. D., Perry, D. E., & Turski, W. M. (1997). Metrics and Laws of Software Evolution—The Nineties View. Proceedings of the 4th International Software Metrics Symposium, 20-32.

Type: Conference paper
Intellectual base: Primary research
Year: 1997
Pages: 20-32
DOI: 10.1109/metric.1997.637156
DOI registrant: Institute of Electrical and Electronics Engineers
Link: https://doi.org/10.1109/METRIC.1997.637156
Cited from: systems_cybernetics

Cited by¶

2 citations across 2 artifacts.

Each citation links to the sentence it supports in the citing article.

Primes¶

Retention Under Removal Uncertainty
- The prime also supports reasoning about when status-quo accumulation crosses a phase boundary: a codebase, regulatory code, or database stays tractable while vestigial mass is small and becomes structurally illegible past some threshold beyond which every reader must wade through dead material to find the live material.
  This sourceStates the laws of software evolution, including increasing complexity and declining quality as a system accretes material unless work is done to reduce it.

Domain-specific¶

Lehman's law of conservation of familiarity
- The per-release delta behaved like a conserved quantity fluctuating around a stable band rather than a free variable the organization could set at will — the observation that became the fifth of Lehman's laws of software evolution
  
  SupportedVerified against the source
  
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