DC Application Profile

From MPDLMediaWiki
Revision as of 13:14, 7 November 2008 by Kurt (talk | contribs)
Jump to navigation Jump to search

This page is to summarize the DC specifications and concepts of DC Metadata profiles and howto create them.

DC Description Set Profile[edit]

Resources, properties and values are given in a Description set which can be defined in a Description Set Profile (DSP). A Description Set Profile (DSP) basically consists of Templates and Constraints. Templates are to express structures and Constraints limit those structures. The following graphic from DCMI shows the basic structure of a DSP:

Structure of DSP from http://www.dublincore.org/documents/2008/03/31/dc-dsp/

Templates[edit]

In the left part of the graphic all kinds of Templates are given. Templates describing

  • resources (Description Template)
  • statements or properties (Statement Template, Literal Statement Template, Non-literal Statement Template)


Constraints[edit]

The right part of the graphic shows the different kinds of constraints that can occur in a DSP.

Constraints are used to define limitations on

  • resources e.g. only resources of type foaf:person are allowed (Resource Constraints)
  • properties e.g. a person has a property called foaf:name (Property Constraints)
    • two ways: giving an explicit list of allowed properties, requiring the property to be a sub-property of a given property
  • values e.g. the value of a special property must be a Literal (kinds of Literal Constraints, Value Constraints and Vocabulary Encoding Schemes)


Definitions[edit]

 Resourse
 Statement
 
 Literal

DC Application Profile[edit]

DC Abstract Model[edit]

References[edit]