Invited Talks -- Modelling of Complex Software Systems: A Reasoned Overview -- The ?+?CAL Algorithm Language -- Semantic-Based Development of Service-Oriented Systems -- Services -- JSCL: A Middleware for Service Coordination -- Analysis of Realizability Conditions for Web Service Choreographies -- Web Cube -- Presence Interaction Management in SIP SOHO Architecture -- Middleware -- Formal Analysis of Dynamic, Distributed File-System Access Controls -- Analysing the MUTE Anonymous File-Sharing System Using the Pi-Calculus -- Towards Fine-Grained Automated Verification of Publish-Subscribe Architectures -- A LOTOS Framework for Middleware Specification -- Composition and Synthesis -- Automatic Synthesis of Assumptions for Compositional Model Checking -- Refined Interfaces for Compositional Verification -- On Distributed Program Specification and Synthesis in Architectures with Cycles -- Generalizing the Submodule Construction Techniques for Extended State Machine Models -- Logics -- Decidable Extensions of Hennessy-Milner Logic -- Symbolic Verification - Slicing -- Symbolic Verification of Communicating Systems with Probabilistic Message Losses: Liveness and Fairness -- A New Approach for Concurrent Program Slicing -- Reducing Software Architecture Models Complexity: A Slicing and Abstraction Approach -- Unified Modeling Languages -- Branching Time Semantics for UML 2.0 Sequence Diagrams -- Formalizing Collaboration Goal Sequences for Service Choreography -- Composition of Use Cases Using Synchronization and Model Checking -- Petri Nets -- PN Standardisation: A Survey -- Resource Allocation Systems: Some Complexity Results on the S4PR Class -- Optimized Colored Nets Unfolding -- Parameterized Verification -- Liveness by Invisible Invariants -- Real Time -- Extending EFSMs to Specify and Test TimedSystems with Action Durations and Timeouts -- Scenario-Based Timing Consistency Checking for Time Petri Nets -- Effective Representation of RT-LOTOS Terms by Finite Time Petri Nets -- Testing -- Grey-Box Checking -- Integration Testing of Distributed Components Based on Learning Parameterized I/O Models -- Minimizing Coordination Channels in Distributed Testing -- Derivation of a Suitable Finite Test Suite for Customized Probabilistic Systems.