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EU Semantic Interoperability Catalogue

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CEN Metalex 1.0

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Abstract Metalex is an open XML interchange format for legal and legislative resources. (Source: Description: CEN MetaLex standardizes the way in which sources of law and references to sources of law are to be represented in XML. It was developed by the CEN Workshop on an Open XML Interchange Format for Legal and Legislative Resources (MetaLex). CEN MetaLex is an interchange format, a lowest common denominator for other standards, intended not to replace jurisdiction-specific standards and vendor-specific formats in the publications process but to impose a standardized view on legal documents for the purposes of information exchange and interoperability in the context of software development. To meet these requirements, MetaLex defines a mechanism for schema extension, adding metadata, cross referencing, constructing compound documents and a basic naming convention. MetaLex enables public administrations to link legal information from various levels of authority and different countries and languages and companies that are active in the field of legal knowledge systems to connect to and use legal content in their applications, which allows them to support a much larger market. The use of An open interchange protects customers of such companies from vendor lock in. Also the standard helps to improve transparency and accessibility of legal content for citizens and businesses. (Source : Context: The CEN workshop on an Open XML interchange format for legal and legislative resources officially started on July 7 2006. The objective of the Workshop was to develop a CEN Workshop Agreement (CWA) on an Open XML interchange format for legal and legislative resources; The CWA was accepted by the CEN and associated standard organisations as a publicly available specification (PAS or pre-norm) for the period of three years, after which the agreement must be renewed or upgraded to a norm. (Source :
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Date of creation:
4 Jun 2013 - 10:36
Date of last modification:
10 Apr 2014 - 18:42

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