alexa Programs, Life Cycles, and Laws of Software Evolution
Engineering

Engineering

Journal of Information Technology & Software Engineering

Author(s): Meir M Lehman

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By clppsitying programs according to their relationship to the environment m which they ne executed, the paper identities the sources of evolutionary pressure on computer rpplicitim and pro- grams and shows why this results in a process of never ending mainte- nance activity. The resultant Life cyde processes ne then briefly dis- cussed. The paper then introduces laws of Rognm Evdution that have been formulated fdlowing quantitative studies of the evolution of a number of different systems. Finally an example is pravided of the application of Evdution Dynamics models to program release plnnning.

This article was published in PROCEEDINGS OF THE IEEE, and referenced in Journal of Information Technology & Software Engineering

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