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Terminology and Controlled Vocabulary Efforts at the U.S. Environmental Protection Agency. Richard Huffine Federal Manager, EPA National Library Network September 16, 2004. EPA’s Controlled Vocabulary. A hierarchical representation of terms used to describe EPA activities
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Terminology and Controlled Vocabulary Efforts at the U.S. Environmental Protection Agency Richard Huffine Federal Manager, EPA National Library Network September 16, 2004
EPA’s Controlled Vocabulary • A hierarchical representation of terms used to describe EPA activities • Concepts are “nested” and while terms may repeat, the concepts are considered to be “in context” • Developed to address access via the Internet in a directory structure • Represented in the Browse EPA Topics interface
Browse EPA Topicshttp://www.epa.gov/ebtpages/airairpoglobalwarming.html
EPA Search • The EPA controlled vocabulary and other metadata elements are captured to improve search results in the EPA search engine • Broad searches are filtered using the controlled vocabulary, metadata entries, and full-text of selected items before a full search is conducted • Search results are delivered in a tiered structure that improves access to the best resources on the EPA Web site
Terminology Reference System • The EPA’s Terminology Reference System (TRS) was created as a single resource of environmental terminology for the Agency by compiling collections of terms from EPA and other sources. • The TRS is one of the EPA’s System of Registries (SoR), providing a gateway and search capability • These registries are a link in EPA's information architecture and are a component to the National Environmental Information Exchange Network (Network) • Specifically, the SoR was developed to support the Agency's data standards program and numerous Agency information technology initiatives