Keyword Type Codelist
From DGIWG
								
												
				Keyword Type Codelist
The value domain of Keyword Type Codelist is defined in the following table.
| # | Code | English Name | Definition | Source | 
|---|---|---|---|---|
| 1 | discipline | Discipline | keyword identifies a branch of instruction or specialized learning | |
| 2 | place | Place | keyword identifies a location | |
| 3 | stratum | Stratum | keyword identifies the layer(s) of any deposited substance | |
| 4 | temporal | Temporal | keyword identifies a time period related to the dataset | |
| 5 | theme | Theme | keyword identifies a particular subject or topic | |
| 6 | instrument | Instrument | keyword identifies a device used to measure or compare physical properties | Addition (ISO 19115-1) | 
| 7 | platform | Platform | keyword identifies a structure upon which an instrument is mounted | Addition (ISO 19115-1) | 
| 8 | product | Product | keyword identifies a type of product | Addition (ISO 19115-1) | 
| 9 | subTopicCategory | SubTopicCategory | refinement of a topic category for the purpose of geographic data classification |  Addition (ISO 19115-1)
 
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