Web applications are nowadays at the heart of the business world. All corporate companies and biginstitutions have very busy e-commerce web sites that host a major part of their businesses. With this greatemergence of web applications, techniques for maintaining their high quality attributes should be developedand exercised. Moreover, the quick evolution of web technology and the high user demands made webapplications subject to rapid maintenance and change, which require the development of efficient regressiontesting techniques. The current testing efforts documented in research deal with a specific part of a webapplication. While some papers model and test the server side programs of the application, others model andanalyze the navigation between pages as seen by the user, and yet others deal with analyzing the architecturalenvironment of the web application. Motivated by the fact that there is no single model to represent the entireweb application, and to model it from different perspectives at the same time, we propose a single analysismodel with it testing techniques which models and tests the three poles of the web application: the client sidepages navigated by the user, the server side programs executed at runtime, and the architectural environmenthosting the application. Having discovered, as well, that there is no automated black box regression testingtechnique, we also propose a methodology and algorithm to create a tool capable of applying black boxregression testing automatically
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