Subject Matter Expert ω:

Individual with in-depth knowledge in a specific area or field.

Sample Usage: A subject matter expert was consulted to inform team members on improvised nuclear devices.

Annotation: Structured techniques for the elicitation of expert judgment are key tools for risk assessment. Subject matter experts are also used to supplement empirical data when needed, or to provide input on specialized subject areas for the purposes of designing and executing risk assessments. Frequently abbreviated as SME.

Source: DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 Regulatory Guidance

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