ETAPS2003wasthesixthinstanceoftheEuropeanJointConferencesonTheory andPracticeofSoftware.ETAPSisanannualfederatedconferencethatwases- blishedin1998bycombininganumberofexistingandnewconferences.Thisyear it comprised ?ve conferences (FOSSACS, FASE, ESOP, CC, TACAS), 14 - tellite workshops (AVIS, CMCS, COCV, FAMAS, Feyerabend, FICS, LDTA, RSKD, SC, TACoS, UniGra, USE, WITS, and WOOD), eight invited lectures (not including those that are speci?c to the satellite events), and several tu- rials. We received a record number of submissions to the ?ve conferences this year: over 500, making acceptance rates fall below 30% for every one of them. Congratulations to all the authors who made it to the ?nal program! I hope that all the other authors still found a way of participating in this exciting event, and I hope you will continue submitting. A special event was held to honor the 65th birthday of Prof. Wlad Turski, one of the pioneers of our young science. The deaths of some of our fathers in the summer of 2002 Dahl, Dijkstra and Nygaard reminded us that Software Science and Technology is, perhaps, no longer that young. Against this sobering background, it is a treat to celebrate one of our most prominent scientists and his lifetime of achievements. It gives me particular personal pleasure that we are able to do this for Wlad during my term as chairman of ETAPS. Keynote.- Symbiosis of Static Analysis and Program Testing.- Software Components.- An Ontology for Software Component Matching.- A Description Language for Composable Components.- A Logical Basis for the Specification of Reconfigurable Component-Based Systems.- An Overall System Design Approach Doing Object-Oriented Modeling to Code-Generation for Embedded Electronic Systems.- Mobile Computing.- Composing Specifications of Event Based Applications.- A Spatio-Temporal Logic for the Specification and Refinement of Mobile Systems.- Spatial Security Policies for Mobile Agents in a Sentient Computing Environment.- Aspect and Object-Oriented Programming.- Towards UML-Based Formal Specifications of Component-Based Real-Time Software.- Modelling Recursive Calls with UML State Diagrams.- Pipa: A Behavioral Interface Specification Language for Aspect.- PacoSuite and JAsCo: A Visual Component Composition Environment with Advanced Aspect Separation Features.- Distributed and Web Applications.- Model-Based Development of Web Applications Using Graphical Reaction Rules.- Modular Analysis of Dataflow Process Networks.- Software Measurements.- Foundations of a Weak Measurement-Theoretic Approach to Software Measurement.- An Information-Based View of Representational Coupling in Object-Oriented Systems.- Formal Verification.- A Temporal Approach to Specification and Verification of Pointer Data-Structures.- A Program Logic for Handling Java Card's Transaction Mechanism.- Monad-Independent Hoare Logic in HASCASL.- Visual Specifications of Policies and Their Verification.- Analysis and Testing.- Automatic Model Driven Animation of SCR Specifications.- Probe Mechanism for Object-Oriented Software Testing.- Model Checking Software via Abstraction of Loop Transitions.- Model Integrationsand Extensions.- Integration of Formal Datatypes within State Diagrams.- Xere: Towards a Natural Interoperability between XML and ER Diagrams.- Detecting Implied Scenarios Analyzing Non-local Branching Choices.- Capturing Overlapping, Triggered, and Preemptive Collaborations Using MSCs.
