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Zoltán Horváth
Professor and supervisor of RefactorErl

Zoltán Horváth is Professor at, and Head of, the Department of Programming Languages and Compilers and Vice-Rector for International Affairs at Eötvös Loránd University in Budapest, Hungary. He defended his habilitation thesis in 2004; the title of his thesis was ``Verification and Semantics of Mobile Code Written in a Functional Programming Language''.

Current topics researched under his supervision include language design, construction of programming language processing tools, formal methods and scheduling in grids. He has been supervising the RefactorErl project since 2005.

Zoltán Horváth is Giving the Following Talks
Change impact analysis

Program slicing is a well-known technique that utilizes dependency graphs and static program analysis. Our goal is to perform change impact analysis of Erlang programs based on the resulted program slices, that is we want to measure the impact of any change made on the source code: especially we want to select a subset of test cases which must be rerun after the modification. The change can be performed manually by the programmer or using a refactoring tool, such as RefactorErl. However refactorings should preserve the original behaviour of the system, developers want to be convinced about that, thus they retest the software after some transformations. Software testing is said to be the most expensive part of the lifecycle of software systems, so our research focuses on selecting test cases affected by refactorings that should be retested after the transformation.

Audience: Erlang developers and researchers
Objectives: Show the audience how you can use the change impact analysis technique to detect the subset of test cases affected by a change on the source code.