Abstract
In this research we focus on understanding the nature of the knowledge used during the various phases of the software development process. We have found that there are two types of knowledge involved in software development: (1) descriptive knowledge represented by conversion and coding rules, e.g., a rule for splitting a class into two; and (2) prescriptive knowledge required for deployment of global or local strategies at a micro design level; e.g., knowledge required to answer the question “why should a class should be split into two?” Most of the already existing knowledge management solutions address descriptive knowledge. Elicitation and management of the prescriptive knowledge is difficult in the sense that it is probabilistic, personalized, distributed and context specific. Also we have found that prescriptive knowledge tends to be used in decision making processes involving multiple stakeholders with different perspectives (e.g., designer, tester, software architect and project manager). We also report on a prototype system called ISS-OKM to extract and reuse both the descriptive and prescriptive knowledge.
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