The growing popularity of Service Oriented Architectures is mainly due to business and technology trendsthat have crystallized over thepast decade. On the business side, companies struggle to survive in a competitive - vironment that pushes them towards a tighter integration into an industry's value chain, to outsource non core business operations or to constantly- engineer business processes. These challenges boosted the demand for sc- able IT-solutions, with e?orts ultimately resulting in a ?exible architectural paradigm - Service Oriented Architectures. On the technical side, middleware standards, technologies and archit- turesbasedonXMLand Webservicesaswellastheirsecurityextensionshave matured to a sound technology base that guarantees interoperability across enterprise and application boundaries - a prerequisite to inter-organizational applications and work?ows. While the principles and concepts of Service Oriented Architectures may lookevidentandcogentfromaconceptualperspective, therealizationofint- organizational work?ows and applications based on the paradigm "Service Oriented Architecture" remains a complex task, and, all the more when it comes to security, the implementation is still bound to low-level technical knowledgeandhence error-prone. The number of books and publications o?ering implementation-level c- erageofthetechnologies, standardsandspeci?cationsasrequiredbytechnical developers lookingfor guidance on how to"add"security to service oriented solutions based on Web services and XML technology is already considerable and ever growing. The present book sets a di?erent focus. Based on the p- adigmof Model Driven Security, it shows how to systematically designand realize security-critical applications for Service Oriented Architectures.

This book constitutes the refereed proceedings of the 15th International Conference on Model Driven Engineering Languages and Systems, MODELS 2012, held in Innsbruck, Austria, in September/October 2012. The 50 papers presented in this volume were carefully reviewed and selected from a total of 181 submissions. They are organized in topical sections named: metamodels and domain specific modeling; models at runtime; model management; modeling methods and tools, consistency analysis, software product lines; foundations of modeling; static analysis techniques; model testing and simulation; model transformation; model matching, tracing and synchronization; modeling practices and experience; and model analysis.

The growing popularity of Service Oriented Architectures is mainly due to business and technology trendsthat have crystallized over thepast decade. On the business side, companies struggle to survive in a competitive - vironment that pushes them towards a tighter integration into an industry's value chain, to outsource non core business operations or to constantly- engineer business processes. These challenges boosted the demand for sc- able IT-solutions, with e?orts ultimately resulting in a ?exible architectural paradigm - Service Oriented Architectures. On the technical side, middleware standards, technologies and archit- turesbasedonXMLand Webservicesaswellastheirsecurityextensionshave matured to a sound technology base that guarantees interoperability across enterprise and application boundaries - a prerequisite to inter-organizational applications and work?ows. While the principles and concepts of Service Oriented Architectures may lookevidentandcogentfromaconceptualperspective, therealizationofint- organizational work?ows and applications based on the paradigm "Service Oriented Architecture" remains a complex task, and, all the more when it comes to security, the implementation is still bound to low-level technical knowledgeandhence error-prone. The number of books and publications o?ering implementation-level c- erageofthetechnologies, standardsandspeci?cationsasrequiredbytechnical developers lookingfor guidance on how to"add"security to service oriented solutions based on Web services and XML technology is already considerable and ever growing. The present book sets a di?erent focus. Based on the p- adigmof Model Driven Security, it shows how to systematically designand realize security-critical applications for Service Oriented Architectures.

The main aim of this monograph is to provide a framework for the integrated design of object-oriented programs with algebraic specification techniques. The design method pursued relies fundamentally on the structuring of systems based on the notion of data types. Depending on the level of abstraction, data types are described in an object-oriented way by algebraic specifications or by machine-executable object-oriented programs. The treatment involves two main aspects. First, object-oriented programs have to be related by a notion of correctness that models the transition from specifications to program implementations. The author presents a notion of correctness which relies on the idea of abstraction functions. Second, in order to obtain an integrated design environment, a uniform structuring concept for object oriented programs and algebraic specifications has to be provided. Inheritance, subtyping and clientship are three central notions of object-oriented structuring. Theauthor uses them to develop the kernel of a typed object- oriented programming language. The monograph provides the formal foundation for a unified framework of algebraic specifications and object-oriented programs. A major guideline is the development of a design method supporting the structured design and reuse of software in this environment.

Das Buch vermittelt die grundlegenden Konzepte und Zusammenh nge objektorientierter Entwurfsmethoden. Im Mittelpunkt stehen dabei die graphischen Beschreibungstechniken der Unified Modeling Language (UML). Neben einer kurzen Einf hrung in Klassen-, Sequenz- und Zustandsdiagramme wird der Leser zun chst mit den Grundbegriffen objektorientierter Systemmodellierung vertraut gemacht. Im Vordergrund steht das Zusammenspiel der unterschiedlichen Diagrammtypen und ihre methodische Verwendung im Use-Case-gesteuerten Entwurf.
Das Buch, das nur Grundkenntnisse in objektorientierter Technologie voraussetzt, wendet sich sowohl an Praktiker als auch an Studierende und Lehrende. Es bietet aber auch neue Ans tze, die es f r Wissenschaftler interessant machen. Durch seine Einordnung von Konzepten vermittelt es ein tiefgehendes Verst ndnis der Techniken und der Methodik des objektorientierten Entwurfs - als Grundstein f r den effizienten Einsatz in der Praxis.

Die Beitrage im vorliegenden Buch stammen von Praktikern der Objektorientierung, die ihren Erfahrungsschatz dokumentieren und anderen Anwendern zuganglich machen. Dabei wird vor allem auf Themen eingegangen, die in Grundlagenbuchern nicht oder nur am Rande behandelt werden, wie z.B. der Entwurf und die Dokumentation von Software-architekturen, Aspekte des Prozess- und Projektmanagements, Geschaftsmodellierung im Kontext objektorientierter Modelle und die Verwendung pradikativer Techniken."