Diagnostic Algorithms are collections of settings that influence the order of testing for Fault Detection or Fault Isolation. Each diagnostic algorithm is comprised of a set of Test Candidate Groupings, Test Weightings and Test Cutoffs. The groupings and weightings defined for each algorithm are the result of a sophistocated understanding of the test selection criteria that, as a rule of thumb, tend to produce "good" diagnostics in a variety of diagnostic situations (production testing, regular maintenance, trouble-shooting, damage assessment, etc.).
These algorithms are not meant to be definitive diagnostic methodologies that can handle any contingency, but rather baseline approaches that can be modified to customize diagnostics to the task at hand. In fact, none of the predefined detection or isolation algorithms initially take into consideration Attributes such as cost or time. It is assumed that the Analyst will add additional weightings as necessary to accomodate the specific needs of a particular diagnostic study.
How to Work with Diagnostic Algorithms
Diagnostic Algorithms are specified by selecting an entry in the drop box at the top of the Detection Options or Isolation Options panel.