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Future Internet 2010, 2(2), 156-189; doi:10.3390/fi2020156
Article

A Distributed Infrastructure for Metadata about Metadata: The HDMM Architectural Style and PORTAL-DOORS System

Global TeleGenetics, Inc., 8 Gilly Flower Street, Ladera Ranch, CA 92694, USA
Received: 30 December 2009 / Revised: 12 April 2010 / Accepted: 20 May 2010 / Published: 1 June 2010
(This article belongs to the Special Issue Metadata and Markup)
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Abstract

Both the IRIS-DNS System and the PORTAL-DOORS System share a common architectural style for pervasive metadata networks that operate as distributed metadata management systems with hierarchical authorities for entity registering and attribute publishing. Hierarchical control of metadata redistribution throughout the registry-directory networks constitutes an essential characteristic of this architectural style called Hierarchically Distributed Mobile Metadata (HDMM) with its focus on moving the metadata for who what where as fast as possible from servers in response to requests from clients. The novel concept of multilevel metadata about metadata has also been defined for the PORTAL-DOORS System with the use of entity, record, infoset, representation and message metadata. Other new features implemented include the use of aliases, priorities and metaresources.
Keywords: architectural style; mobile metadata; hierarchical authority; distributed registrydirectory system; IRIS-DNS System; PORTAL-DOORS System; PDS; HDMM architectural style; mobile metadata; hierarchical authority; distributed registrydirectory system; IRIS-DNS System; PORTAL-DOORS System; PDS; HDMM
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Taswell, C. A Distributed Infrastructure for Metadata about Metadata: The HDMM Architectural Style and PORTAL-DOORS System. Future Internet 2010, 2, 156-189.

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