What is this thing called Integrated Diagnostics?

Integrated Diagnostics (ID), a system management/engineering discipline which improves readiness, increases testability, and decreases life cycle cost of the system is discussed. ID involves the detection and isolation of one hundred percent of the sets of faults identified, through analysis and/or experience, as known or expected to occur. The three maintenance levels of ID: organizational, intermediate, and depot are described. ID is applied only to a system that is in the conceptual phase and some of the factors to be considered for its application include: time-to-test, dollar constraints, new technologies, and skill level retention. ID uses diagnostic technologies (built-in test, off-line automatic test equipment, and manual procedures), forming the mix best suited for each application, to achieve its objective and meet the user's requirements and constraints.