Domain engineering : product lines languages and conceptual models Domain engineering is a set of activities intended to develop maintain and manage the creation and evolution of an area of knowledge suitable for processing by a range of software systems. It is of considerable practical significance as it provides methods and techniques that help reduce time to market development costs and project risks on one hand and helps improve system quality and performance on a consistent basis on the other. In this book the editors present a collection of invited chapters from various fields related to domain engineering. The individual chapters present state of the art research and are organized in three parts. The first part focuses on results that deal with domain engineering in software product lines. The second part describes how domain specific languages are used to support the construction and deployment of domains. Finally the third part presents contributions dealing with domain engineering within the field of conceptual modeling. All chapters utilize a similar terminology which will help readers to understand and relate to the chapters content. The book will be especially rewarding for researchers and students of software engineering methodologies in general and of domain engineering and its related fields in particular as it contains the most comprehensive and up to date information on this topic