A Survey of Health Management User Objectives in Aerospace Systems Related to Diagnostic and Prognostic Metrics

One of the most prominent technical challenges to
effective deployment of health management systems is the
vast difference in user objectives with respect to
engineering development. In this paper, a detailed survey
on the objectives of different users of health management
systems is presented. These user objectives are then
mapped to the metrics typically encountered in the
development and testing of two main systems health
management functions: diagnosis and prognosis. Using
this mapping, the gaps between user goals and the metrics
associated with diagnostics and prognostics are identified
and presented with a collection of lessons learned from
previous studies that include both industrial and military
aerospace applications.*