Formal Methods for Open Object Based Distributed Systems (vol. # 4037) : 8th IFIP WG 6.1 International Conference FMOODS 2006 Bologna Italy June 14 16 2006 Proceedings Invited Speakers Security Issues in Service Composition Separating Distribution from Coordination and Computation as Architectural Dimensions The Bisimulation Proof Method: Enhancements and Open Problems Regular Papers An Approach to Quality Achievement at the Architectural Level: AQUA Bounded Analysis and Decomposition for Behavioural Descriptions of Components Modeling and Validation of a Software Architecture for the Ariane 5 Launcher Synchronizing Behavioural Mismatch in Software Composition Static Safety for an Actor Dedicated Process Calculus by Abstract Interpretation Temporal Superimposition of Aspects for Dynamic Software Architecture Modeling Long–Running Transactions with Communicating Hierarchical Timed Automata Transformation Laws for UML RT Underspecification Inherent Nondeterminism and Probability in Sequence Diagrams Generating Instance Models from Meta Models KM3: A DSL for Metamodel Specification Defining Object Oriented Execution Semantics Using Graph Transformations Type Safe Runtime Class Upgrades in Creol Abstract Interface Behavior of Object Oriented Languages with Monitors Mobility Mechanisms in Service Oriented Computing Theoretical Foundations of Scope Based Compensable Flow Language for Web Service.