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Minus 1a5aa4f1c08b567c9107cba729de26bc87c17ab2b2f690eb45059193a1d6f587 Techniques for Executing and Reasoning About Specification Diagrams
Thati, Prasanna and Talcott, Carolyn and Agha, Gul - 2004 - PDF

Specification Diagrams (SD) are a graphical notation for specifying the message passing behavior of open distributed object systems. SDs facilitate specification of system behaviors at various levels of abstraction, ranging from high-level specifications to concrete diagrams with low-level implementation details. We investigate the theory of may testing equivalence on SDs, which is a notion of process equivalence that is useful for relating diagrams at different levels of abstraction. We present a semantic characterization of the may equivalence on SDs which provides a powerful technique to relate abstract specifications and refined implementations. We also describe our prototypical implementation of SDs and of a procedure that exploits the characterization of may testing to establish equivalences between finitary diagrams (without recursion).

Keywords: Graphical specification languages, may testing, trace equivalence, rewriting logic