COCOON: Crowdsourced Testing Quality Maximization Under Context Coverage Constraint
2017
Mobile app testing is challenging since each test needs to be executed in a variety of operating contexts including heterogeneous devices, various wireless networks and different locations. Crowdsourcing enables a mobile app test to be distributed as a crowdsourced task to leverage crowd workers to accomplish the test. However, high test quality and expected test context coverage are difficult to achieve in crowdsourced testing. Upon distributing a test task, mobile app providers neither know who to participate nor predict whether all the expected test contexts can be covered in the task. To address this problem, we put forward a novel research problem called Crowdsourced Testing Quality Maximization Under Context Coverage Constraint (Cocoon). Given a mobile app test task, our objective is to recommend a set of workers, from available crowd workers, such that the expected test context coverage and a high test quality can be achieved. We prove that the Cocoon problem is NP-Complete and then introduce two greedy approaches. Based on a real dataset from the largest Chinese crowdsourced testing platform, our evaluation shows the effectiveness and efficiency of the two approaches, which can be potentially used as online services in practice.
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