The Epistemology of Validation and Verification Testing -- Passive Testing – A Constrained Invariant Checking Approach -- Dependence Testing: Extending Data Flow Testing with Control Dependence -- Comparing Bug Finding Tools with Reviews and Tests -- Cross-Language Functional Testing for Middleware -- Using Anti-Ant-like Agents to Generate Test Threads from the UML Diagrams -- Action Refinement in Conformance Testing -- Multiplexing of Partially Ordered Events -- Testing Communicating Systems: a Model, a Methodology, and a Tool -- Coping with Nondeterminism in Network Protocol Testing -- Eliminating Redundant Tests in a Checking Sequence -- On FSM-Based Fault Diagnosis -- State Identification Problems for Timed Automata -- Timing Fault Models for Systems with Multiple Timers -- An Expressive and Implementable Formal Framework for Testing Real-Time Systems -- Firewall Conformance Testing -- Test Generation for Interaction Detection in Feature-Rich Communication Systems -- Fault Detection of Hierarchical Networks with Probabilistic Testing Algorithms -- Detecting Trapdoors in Smart Cards Using Timing and Power Analysis -- From U2TP Models to Executable Tests with TTCN-3 - An Approach to Model Driven Testing - -- Using TTCN-3 for Testing Platform Independent Models -- Some Lessons from an Experiment Using TTCN-3 for the RIPng Testing -- A Model-Based Approach for Robustness Testing -- Content-Level Conformance Testing: An Information Mapping Case Study -- Quiescence Management Improves Interoperability Testing.

This book constitutes the refereed proceedings of the 17th IFIP TC 6/WG 6.1 International Conference on Testing Communicating Systems, TestCom 2005, held in Montreal, Canada in May/June 2005. The 24 revised full papers presented together with the extended abstract of a keynote talk were carefully reviewed and selected from initially 62 submissions. The papers address all current issues in testing communicating systems, ranging from classical telecommunication issues to general software testing.