Invited Technical Paper -- Behavior-Preserving Refinement Relations Between Dynamic Software Architectures -- Contributed Papers -- Modelling Mobility with Petri Hypernets -- Cryptomorphisms at Work -- Towards a Formal Specification of an Electronic Payment System in CSP-CASL -- Algebraic Semantics of Design Abstractions for Context-Awareness -- CCC – The Casl Consistency Checker -- Ontologie…