Use cases have achieved wide use as specification tools for systems observable behavior, but there still remains a large gap between specifying behavior and determining the software components to build or procure. WUsCaM 05 – “Workshop on Use Cases in Model-Driven Software Engineering” – brought together use case and MDSE experts from industry and academia to identify and characterize problem areas and promising approaches. 1 Motivation and goals This workshop was the second in the series of Workshops on Use Case Modeling (WUsCaM-05). The first one took place in 2004 in conjunction with the UML’04 Conference, under the name “Open Issues in Industrial Use Case Modeling”. The success of the first edition encouraged us to continue the series within the MoDELS Conference, focusing the workshop on the more specific topic of “Use Cases in Model-Driven Software Engineering”, which was one of the main concerns of last year workshop discussions. The integration of use cases wi...