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Software reuse is an effective way to improve software productivity and quality. Software libraries are getting bigger, while most of them, such as those of objectoriented languages, use a simple but somewhat ineffective classification method. These libraries usually provide search aids for novices but experts. They are not flexible enough to serve users at different levels of familiarity with libraries. In this paper, we propose a Software Reuse Framework (SRF) for overcoming the above drawbacks. Based on a built-in hierarchical thesaurus, its classification process may be made semi-automatic. SRF is a domainindependent framework that can be adapted to various libraries and also provides four search levels to serve users with different levels of familiarity with libraries.

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