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This paper keynotes a panel discussion on measures of performance and serviceability of facilities that are applicable to individuals and small groups. The measures are derived within a control theory perspective of human performance in the built environment, using a general habitability model to organize their “controlled quantities” into appropriate scalar and value dimensions. The fundamental argument is that measures of facility performance should have a recursive nature which combines both environmental and behavioral referents. This captures what a user of a setting is trying to control in order to act in a certain way, and how elements of the setting participate in the ‘control loop’ that is established. Several examples illustrate how a relatively few powerful yet generalizable measures can assess many important conditions relevant to diverse questions of facility performance.
facility performance, measurement theory, control systems, human factors
PrincipalProfessor, Facilities Managment at Grand Valley State University, L.V. Eberhard Center, Grand Rapids, MI