The Fourth edition of the Portuguese Software Engineering Doctoral Symposium (SEDES 2012) was held on 3 September 2012 in Lisbon, colocated with the QUATIC 2012 conference. The aim of this symposium is to bring together software engineering PhD students supervised or co-supervised by faculty members of Portuguese universities in a constructive environment where they can present and discuss their ongoing PhD projects. The symposium aims at selecting PhD students that have already settled on a specific research topic, but are at least one year apart from delivering their dissertation, so that they can still benefit from the symposium discussions. This symposium is also instrumental as a gathering point for the Software Engineering researchers in Portugal, with a tradition of synergies facilitator since its first edition. As such, an effort has been made to hold this event in different towns. Previous editions took place in Coimbra , Caparica  and Porto .
Regarding scope, the eligible topics for participation in SEDES include all knowledge areas defined in SWEBOK . Research work in related fields such as Computer Science (including formal methods) and Information Systems (including Information Services variants) are considered within the scope of SEDES if they hold an applied perspective on the technological or methodological issues of software development or maintenance.