A process that encompasses all activities that take place between a forensic psychophysiologist and an examinee during a specific series of interactions. These interactions include the pretest interview; the use of the polygraph to collect physiological data from the examinee while presenting a series of tests; the diagnostic phase, which includes the analysis of physiological data in correlation with the questions asked during each test to support a diagnostic decision; and the posttest phase, which may or may not include interrogation of the examinee. See: Yankee (1995).