This volume contains the proceedings of AMAST 2002, the 9th International Conference on Algebraic Methodology and Software Technology, held during September 9–13, 2002, in Saint-Gilles-les-Bains, R´eunion Island, France.

Invited Papers.- From Specifications to Code in Casl.- Automata and Games for Synthesis.- Pragmatics of Modular SOS.- Tool-Assisted Specification and Verification of the JavaCard Platform.- Higher-Order Quantification and Proof Search*.- Algebraic Support for Service-Oriented Architecture.- Regular Papers.- Fully Automatic Adaptation of Software Components Based on Semantic Specifications*.- HasCasl: Towards Integrated Specification and Development of Functional Programs.- Removing Redundant Arguments of Functions*.- A Class of Decidable Parametric Hybrid Systems.- Vacuity Checking in the Modal Mu-Calculus*.- On Solving Temporal Logic Queries.- Modelling Concurrent Behaviours by Commutativity and Weak Causality Relations*.- An Algebra of Non-safe Petri Boxes.- Refusal Simulation and Interactive Games.- A Theory of May Testing for Asynchronous Calculi with Locality and No Name Matching.- Equational Axioms for Probabilistic Bisimilarity.- Bisimulation by Unification*.- Transforming Processes to Check and Ensure Information Flow Security*.- On Bisimulations for the Spi Calculus*.- Specifying and Verifying a Decimal Representation in Java for Smart Cards*.- A Method for Secure Smartcard Applications.- Extending JML Specifications with Temporal Logic.- Algebraic Dynamic Programming.- Analyzing String Buffers in C.- A Foundation of Escape Analysis*.- A Framework for Order-Sorted Algebra.- Guarded Transitions in Evolving Specifications.- Revisiting the Categorical Approach to Systems*.- Proof Transformations for Evolutionary Formal Software Development.- Sharing Objects by Read-Only References.- Class-Based versus Object-Based: A Denotational Comparison.- System Descriptions.- BRAIN: Backward Reachability Analysis with Integers.- The Development Graph Manager Maya.

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