"A coordinated, supervised activity usually used to test a single specific operation or function in a single agency. Drills are commonly used to provide training on new equipment, develop or test new policies or procedures, or practice and maintain current skills. Typical attributes include the following: A narrow focus, measured against established standards; Instant feedback; Performance in isolation; Realistic environment". (FEMA, NIMS Compliance Metrics Terms of Reference (For FY 2007), Oct.23, 2006, p. 3). See: Exercise Types