Concept help - Data Type
A datatype is a set of distinct values, characterized by properties of those values and by operations on those values (ISO/IEC 11404).
Primative datatypes are those "that cannot be decomposed into other datatypes without loss of associated semantics "
ISO/IEC 11179-3 Section 220.127.116.11
Datatype is a class, each instance of which models a datatype (3.1.9), a set of distinct values, characterized by properties of those values and by operations on those values. For example, the category used for the collection of letters, digits, and/or symbols to depict values of a Data_Element (18.104.22.168) determined by the operations that may be performed on the Data_Element.
This part of ISO/IEC 11179 is intended to accommodate datatypes from datatype schemes specified in external standards. It is also intended to accommodate other non-standard datatype schemes. Possible standardized datatype schemes include:
- ISO/IEC 9075 (SQL dataype);
- ISO/IEC 11404 (General Purpose Datatypes);
- ISO 21090 Health Informatics datatypes;
- C programming language datatypes;
- XML Schema datatypes;
Fields available on this metadata type
|Name||The primary name used for human identification purposes.|
|Definition||Representation of a concept by a descriptive statement which serves to differentiate it from related concepts. (3.2.39)|
|Version||Unique version identifier of this metadata item.|
|References||Significant documents that contributed to the development of the metadata item which were not the direct source for the metadata content.|
|Origin||The source (e.g. document, project, discipline or model) for the item (22.214.171.124.3.5)|
|Comments||Descriptive comments about the metadata item (126.96.36.199.3.4)|
set of distinct values, characterized by properties of those values and by operations on those values ISO/IEC 11179 - Clause 3.1.8