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5. Element Attributes Legends
Each metadata element in Section 6 is described by the use of three element attributes sourced from Dublin Core Metadata Initiative, DCMI Metadata Terms, 2005-06-13. The element attributes are:
Attribute
Attribute Description
Name
The unique token assigned to the term.
URI
The Uniform Resource Identifier used to uniquely identify a term.
Definition
A statement that represents the concept and essential nature of the term.
Each metadata element in Section 7 is described by the use of four element attributes sourced from ISO International Standard 11179-3, Information Technology - Metadata Registries - Part 3: Registry Metamodel and Basic Attributes, 2nd Edition, 2003-02-15. The element attributes are:
Attribute
Attribute Description
Name
The designation of an object by a linguistic expression.
Definition
Representation of a concept by a descriptive statement which serves to differentiate it from related concepts.
Value Domain
A set of permissible values. Permissible values may either be enumerated (i.e. taken from a controlled vocabulary) or expressed via a free-text description.
Datatype Name
A designation for a datatype. A datatype is a set of distinct values, characterized by properties of those values and by operations on those values.
Four datatypes are specified:
- String - indicates that the value is comprised of any sequence of characters (e.g. alpha, numeric, special, etc.)
- Date - indicates that the value represents a date only.
- Date/Time - indicates that the value represents a combination of a date and time.
- Boolean - indicates that the value can be either True or False, or Yes or No.
Additional element attributes, delineating the business rules for the use of each element, are provided in the GC RMAP. For example, the GC RMAP also includes the attributes: rationale, obligation, encoding scheme, linkages, format, occurrence, etc.
