Proceedings. 19th International Conference on Automated Software Engineering, 2004. (2004)
Sept. 20, 2004 to Sept. 24, 2004
Taweesup Apiwattanapong , Georgia Institute of Technology, Atlanta
Alessandro Orso , Georgia Institute of Technology, Atlanta
Mary Jean Harrold , Georgia Institute of Technology, Atlanta
During software evolution, information about changes between different versions of a program is useful for a number of software engineering tasks. For many of these tasks, a purely syntactic differencing may not provide enough information for the task to be performed effectively. This problem is especially relevant in the case of object-oriented software, for which a syntactic change can have subtle and unforeseen effects. In this paper, we present a technique for comparing object-oriented programs that identifies both differences and correspondences between two versions of a program. The technique is based on a representation that handles object-oriented features and, thus, can capture the behavior of object-oriented programs. We also present JDIFF, a tool that implements the technique for Java programs, and empirical results that show the efficiency and effectiveness of the technique on a real program.
A. Orso, M. J. Harrold and T. Apiwattanapong, "A Differencing Algorithm for Object-Oriented Programs," Proceedings. 19th International Conference on Automated Software Engineering, 2004.(ASE), Linz, Austria, 2004, pp. 2-13.