Remo Lachmann

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Variability of modern software systems increases potential sources of errors and demands appropriate quality assurance strategies. In order to reduce the test effort when testing software product lines, incremental model-based testing strategies have been proposed, based on the conceptual ideas of delta modeling. It requires executable system specifications(More)
Software product lines have potential to allow for mass customization of products. Unfortunately, the resulting, vast amount of possible product variants with commonalities and differences leads to new challenges in software testing. Ideally, every product variant should be tested, especially in safety-critical systems. However, due to the exponentially(More)
Software product line (SPL) testing is a challenging task, due to the huge number of variants sharing common functionalities to be taken into account for efficient testing. By adopting the concept of regression testing, incremental SPL testing strategies cope with this challenge by exploiting the reuse potential of test artifacts between subsequent variants(More)
Software product lines (SPL) capture commonalities and variabilities of product families and, thus, enable mass customization of product variants according to customers desired configurations. However, they introduce new challenges to software testing due to a potentially large number of variants. While each variant should be tested, testing resources are(More)
Testing is a fundamental task to ensure software quality. Regression testing aims to ensure that changes to software do not introduce new failures. As resources are often limited and testing comprises a vast amount of test cases, different regression strategies have been proposed to reduce testing effort by selecting or prioritizing important test cases,(More)
Testing every product of a software product line (SPL) is often not feasible due to the exponential number of products in the number of features. Thus, the order in which products are tested matters, because it can increase the early rate of fault detection. Several approaches have been proposed to prioritize products based on configuration similarity.(More)
Regression testing is the common task of retesting software that has been changed or extended (e.g., by new features) during software evolution. As retesting the whole program is not feasible with reasonable time and cost, usually only a subset of all test cases is executed for regression testing, e.g., by executing test cases according to test case(More)
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