Victor Rodriguez-Doncel , Universidad Politécnica de Madrid, Madrid
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MMUL.2014.22
Contract Expression Languages allow representing business contracts in a digital, structured form. Some examples of XML-based languages are the Content Reference Forum format, the OASIS eContracts standard or a proposed extension for MPEG-21 Part 5 for contracts. These formats have influenced in the design of the MPEG-21 Parts 20 Contract Expression Language (CEL) and 21 Media Contract Ontology (MCO), which have been recently specified by modelling the most relevant clauses found in a large set of contracts in the audiovisual sector. The MPEG-21 CEL, described in this paper, defines a language for representing media contracts as XML. It is structured in two schemas, a core defining the structural elements of a contract, and an extension with vocabulary for specific applications. An exemplary mapping of a contract instance is discussed.
Victor Rodriguez-Doncel, "Media contracts formalization using a standardized contract expression language", IEEE MultiMedia, , no. 1, pp. 1, PrePrints PrePrints, doi:10.1109/MMUL.2014.22