Distributed development of software has turned into a natural and modern approach where teams spread over the world cooperate to develop a software product, and this has become possible due to the expansion and popularity of global networks as internet. Collaborative tools coordinate a variety of tasks of several members of a team with an objective of reaching a specific goal. One such task that plays a major role, within the software development life cycle, is testing. In particular this task becomes more and more important when considering critical software such as space applications, which is the case of Brazilian Space Institutions CTA and INPE. The work discussed in this paper has two objectives: (i) present a web-based tool, WEB-PerformCharts, that can generate black-box test cases of a space application software; (ii) show that Statecharts are an excellent option to model the software specification, from which test sequences can be generated by applying several methods well kno...