Modeling the evolution of artifacts

The particular requirements engineering (RE) process modeling approach presented, advocates the capture of the history RE artifacts. An artifact is viewed as an evolutionary object which evolves as the RE process proceeds. The author proposes a classification of the various kinds of evolution of artifacts and presents a generic model, the evolutionary object model, to structure the RE history kept in the artifact´s memory according to this classification. She emphasises the role of RE decisions in the evolutionary process and shows how the rationale of an artifact evolution can be expressed in terms of decisions and stored in the evolutionary object history