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Tests and Proofs

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Produktnummer: 18d4465722671840caadec5acc1d1ee0ac
Themengebiete: Automat Oracle logic model checking programming theorem proving tools verification
Veröffentlichungsdatum: 09.08.2007
EAN: 9783540737698
Sprache: Englisch
Seitenzahl: 217
Produktart: Kartoniert / Broschiert
Herausgeber: Gurevich, Yuri Meyer, Bertrand
Verlag: Springer Berlin
Untertitel: First International Conference, TAP 2007 Zurich, Switzerland, February 12-13, 2007 Revised Papers
Produktinformationen "Tests and Proofs"
To prove the correctness of a program is to demonstrate, through impeccable mathematical techniques, that it has no bugs. To test a program is to run it with the expectation of discovering bugs. These two paths to software reliability seem to diverge from the very start: if you have proved your program correct, it is fruitless to comb it for bugs; and if you are testing it, that surely must be a sign that you have given up on any hope to prove its correctness. Accordingly, proofs and tests have, since the onset of software engineering research, been pursued by distinct communities using different kinds of techniques and tools. Dijkstra’s famous pronouncement that tests can only show the presence of errors — in retrospect, perhaps one of the best advertisements one can imagine for testing, as if “only” finding bugs were not already a momentous achievement! — didn’t help make testing popular with provers, or proofs attractive to testers. And yet the development of both approaches leads to the discovery of common issues and to the realization that each may need the other. The emergence of model checking was one of the first signs that apparent contradiction may yield to complementarity; in the past few years an increasing number of research efforts have encountered the need for combining proofs and tests, dropping earlier dogmatic views of incompatibility and taking instead the best of what each of these software engineering domains has to offer.
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