Assigned Reading Overview of the Dublin Core Data Model

The Dublin Core Data Model--a formalized representation to support the encoding needs for implementors.  The function requirements:

• Internationalization--used for defining same descriptive concepts in different languages.
• Modularization/extensibility--ability to mix semantics in various communities to support general descriptive practices
• Semantic refinement--refining elements in order to be more specific
• Identification of encoding schemes--specifiy particular encoding scheme to certain types of data
• Specification of controlled vocabs--specifiy schemes to classify content of resrouces.
• Identification of structured compound values--authorized versions of people, subjects, entities

The DCMI basis built on --resources in the world that have properties associated with them.  these can be literals or other resources.  

• a resource is anything that can be identified--document, image and/or collection.
• not all resources are retrievable
• a property is a specific type or resource--by declaring additional properties with qualifiers and domain specific needs.  Each property will be uniquely identified with human readable labels.
• classes of objects are specific
• literal are terminal resources--single text strings

A core of semantics has been defined.  This is represented in a schema--viewed as a dictionary to identify terms. 

Reading thru the rest of the article--it was interesting to read about the semantic refinement--not having known what the url links stood for.  Aslo reading how the encoding is written--so it is critical to the interpretation of the metadata.