The fourth international workshop on Search-driven Development - Users, Infrastructure, Tools, and Evaluation (SUITE 2010) focuses on exploring the notion of search as a fundamental activity during software development, and all aspects that are related with integrating search into software development workflows. Two primary observations encouraged us to start this workshop series. First, results from existing research show that developers spend majority of their time in searching for code. Furthermore, developers have to struggle with a myriad of additional information needs such as those that are related with design or requirements documents or even with the communication between the various stakeholders in a development project. Second, r...