https://blog.systerel.fr/Anaïs is a railway system engineer at Systerel.enContents © 2026 <a href="mailto:contact@systerel.fr">Systerel</a> Thu, 09 Apr 2026 12:39:51 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://blog.systerel.fr/posts/2022-11/back-to-back-testing/Anaïs Guignard, Julien Niguez, Nicolas Breton, Vincent Pouzol<div><img alt="Back-to-back zebras" class="float-right" src="https://blog.systerel.fr/images/b2bt/zebrasbacktoback.png" style="width: 240px;"> <p>Back-to-back testing (B2BT) techniques are used to verify that two products of a software development process are equivalent. By running the two products "back to back" on a set of test cases, it is verified that they produce the same output. If the scenarios are chosen carefully and the two runs produce the same results, it can be inferred that the two products are equivalent with some level of confidence.</p> <p><a href="https://blog.systerel.fr/posts/2022-11/back-to-back-testing/">Read more…</a> (24 min remaining to read)</p></div>b2btformels3validationvérificationhttps://blog.systerel.fr/posts/2022-11/back-to-back-testing/Tue, 08 Nov 2022 10:21:44 GMT