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Software specialization via symbolic execution

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4 Author(s)
A. Coen-Porisini ; Dipartimento di Elettronica, Politecnico di Milano, Italy ; F. De Paoli ; C. Ghezzi ; D. Mandrioli

A technique and an environment-supporting specialization of generalized software components are described. The technique is based on symbolic execution. It allows one to transform a generalized software component into a more specific and more efficient component. Specialization is proposed as a technique that improves software reuse. The idea is that a library of generalized components exists and the environment supports a designer in customizing a generalized component when the need arises for reusing it under more restricted conditions. It is also justified as a reengineering technique that helps optimize a program during maintenance. Specialization is supported by an interactive environment that provides several transformation tools: a symbolic executor/simplifier, an optimizer, and a loop refolder. The conceptual basis for these transformation techniques is described, examples of their application are given, and how they cooperate in a prototype environment for the Ada programming language is outlined

Published in:

IEEE Transactions on Software Engineering  (Volume:17 ,  Issue: 9 )