Service Parameters (Service Keywords) |
Definition |
The <Service_Parameters> field allows for the specification of Earth science services keywords that are representative of the services, tools, and/or resources being described. These keywords are important for the precise search and retrieval of information from the GCMD. The author must select these keywords from the controlled set of services keywords. The <Service_Parameters> field consists of a 4-level hierarchical classification of services keywords, defined as follows:
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Syntax |
<Service_Parameters>
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Usage |
Multiple <Service_Parameters> can be specified for each metadata record. All applicable <Service_Topic>, <Service_Term>, and <Service_Specific_Name> services keywords should be selected that describe the service. |
Example |
Specification of <Service_Parameters> without a <Service_Specific_Name> keyword.
<Service_Parameters> <Service_Parameters> |
This document
should be cited as: Service Entry Resource Format (SERF) Writer's Guide, 2008. Global Change Master Directory. National Aeronautics and Space Administration. [http://gcmd.nasa.gov/User/serfguide/]. |