The goal of the Doctoral Symposium at STAF 2014 was to provide a forum in which PhD students could present their work in progress. The symposium supported students by providing independent and constructive feedback about their already completed and, more importantly, planned research work. The symposium was accompanied by prominent experts who were actively participating in critical discussions. Relevant elds within Software Engineering included: { Models: reasoning, execution, management, testing and validation { Model transformations: paradigms, development, applications, tools { Graph theories and applications { Domain-Speci c Languages { Proofs and Testing: debugging, frameworks, experiments, case studies { Model-Driven Engineering Any topic of interest for one of the conferences that took place within STAF 2015 was highly welcomed. The organizers would like to thank the PC members who actively participated in the discussion. The participating students also asked questions and gave constructive feedback to the other PhD candidates, which is also acknowledged. An organization award goes to Alfonso Pierantonio for arranging all our special requests including the three pinboards in the lecture hall for expert comments on student papers.