Logic and Algebraic Programming, vol. 75(1), pp. 86–138

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We study behavioural equivalences for dynamic web data in Xdn, a model for reasoning about behaviour found in (for example) dynamic web page programming, applet interaction, and web-service orchestration. Xdn is based on an idealised model of semistructured data, and an extension of the 7r-calculus with locations and operations for interacting with data. The equivalences are nonstandard due to the integration of data and processes, and the presence of locations.

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