FORTE (Formal Techniques for Networked and Distributed Systems) 2005 was sp- sored by Working Group 6.1, Technical Committee 6 (TC6) of the International Fed- ation for InformationProcessing (IFIP).The conferenceseries started in 1981underthe name PSTV (ProtocolSpeci?cation, Testing, and Veri?cation).In 1988,a second series under the name FORTE was started. Both series merged to FORTE/PSTV in 1996. The conference name was changed to FORTE in 2001. During its 24-year history, many important contributions have been reported in the conference series. The last ?ve me- ings of FORTE were held in Pisa (Italy), Cheju Island (Korea), Houston (USA), Berlin (Germany), and Madrid (Spain). The 25th FORTE was held from Sunday to Wednesday, October 2 5, 2005 on the beautiful campus of the National Taiwan University (NTU), Taipei, Taiwan, ROC. The scope covered formal description techniques (MSC, UML, Use cases, ...), semantic foundations, model-checking, SAT-based techniques, process algebrae, - stractions, protocol testing, protocol veri?cation, network synthesis, security system analysis, network robustness, embedded systems, communication protocols, and s- eral promising new techniques. In total, we received 88 submissions and accepted 33 regular papers and 6 short papers. All submissions received three reviews. The ?nal program also included 3 keynote speeches, respectively by Prof. Amir Pnueli, Dr. C- stance Heitmeyer, and Prof. Teruo Higashino, and 3 tutorials, respectively by Prof. Rance Cleaveland, Dr. Constance Heitmeyer, and Prof. Teruo Higashino. The proce- ings also include the text of the keynote speeches. In addition, there were social events, including a reception, a banquet, and an excursion.

Inhalt
KEYNOTE SPEECHES.- Ranking Abstraction as Companion to Predicate Abstraction.- Developing High Quality Software with Formal Methods: What Else Is Needed?.- A Testing Architecture for Designing High-Reliable MANET Protocols.- REGULAR PAPERS.- A Composition Operator for Systems with Active and Passive Actions.- A Formal Semantics of UML StateCharts by Means of Timed Petri Nets.- A Hierarchy of Implementable MSC Languages.- Combining Static Analysis and Model Checking for Systems Employing Commutative Functions.- Fast Generic Model-Checking for Data-Based Systems.- Logic and Model Checking for Hidden Markov Models.- Proving ??-Calculus Properties with SAT-Based Model Checking.- Ad Hoc Routing Protocol Verification Through Broadcast Abstraction.- Discovering Chatter and Incompleteness in the Datagram Congestion Control Protocol.- Thread Allocation Protocols for Distributed Real-Time and Embedded Systems.- A Petri Net View of Mobility.- Modular Verification of Petri Nets Properties: A Structure-Based Approach.- An Improved Conformance Testing Method.- Resolving Observability Problems in Distributed Test Architectures.- Automatic Generation of Conflict-Free IPsec Policies.- A Framework Based Approach for Formal Modeling and Analysis of Multi-level Attacks in Computer Networks.- Model Checking for Timed Statecharts.- Abstraction-Guided Model Checking Using Symbolic IDA* and Heuristic Synthesis.- Modeling and Verification of Safety-Critical Systems Using Safecharts.- Structure Preserving Data Abstractions for Statecharts.- Amortised Bisimulations.- Proof Methodologies for Behavioural Equivalence in Dpi.- Deriving Non-determinism from Conjunction and Disjunction.- Abstract Operational Semantics for Use Case Maps.- ArchiTRIO: A UML-Compatible Language for ArchitecturalDescription and Its Formal Semantics.- Submodule Construction for Extended State Machine Models.- Towards Synchronizing Linear Collaborative Objects with Operational Transformation.- Designing Efficient Fail-Safe Multitolerant Systems.- Hierarchical Decision Diagrams to Exploit Model Structure.- Computing Subgraph Probability of Random Geometric Graphs: Quantitative Analyses of Wireless Ad Hoc Networks.- Formalising Web Services.- From Automata Networks to HMSCs: A Reverse Model Engineering Perspective.- Properties as Processes: Their Specification and Verification.- SHORT PAPERS.- Epoch Distance of the Random Waypoint Model in Mobile Ad Hoc Networks.- Automatic Partitioner for Behavior Level Distributed Logic Simulation.- Expressive Completeness of an Event-Pattern Reactive Programming Language.- Formalizing Interoperability Testing: Quiescence Management and Test Generation.- Formal Description of Mobile IPv6 Protocol.- Incremental Modeling Under Large-Scale Distributed Interaction.- The Inductive Approach to Strand Space.- Compositional Modelling and Verification of IPv6 Mobility.