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Semantics Implied in Web

  • Hypermedia ->behavioral semantics
    • Links become available through interaction
  • Uniform interface ->behavioral semantics
    • GET, PUT, DELETE have known effects
    • GET is safe, PUT and DELETE idempotent
    • POST has no implied semantics
  • Self-description -> information model
    • Operation output data can specify what it is
      • GRDDL, other semantic annotations
    GRDDL is a mechanism for Gleaning Resource Descriptions from Dialects of Languages. This GRDDL specification introduces markup based on existing standards for declaring that an XML document includes data compatible with the Resource Description Framework (RDF) and for linking to algorithms (typically represented in XSLT), for extracting this data from the document.

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