DC Application Profile

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

DC Description Set Profile

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:

Templates

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

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

 Resourse

 Statement
 
 Literal

DC Abstract Model=

References

• Description Set Profiles: A constraint language for Dublin Core Application Profiles
• DCMI Abstract Model

Dublin Core

Description Set Profile