The 13 full and 20 short papers presented at BMSD 2013 were selected from 56 submissions. The eight papers published in this book were carefully reviewed and selected from the 13 full papers. The selection includes papers touching upon a large number of research topics, ranging from more conceptual ones, such as modeling landscapes, process modeling, declarative business rules, and normalized systems to more practical ones, such as business-case development and performance indicators, and from more business-related topics, such as value modeling and service systems, to topics related to information architectures.