Prioritized test procedure and step display using statistical feedback

A method for updating a fault tree used in diagnosis of a condition of a machine, the fault tree comprising a sequence of test modules, each of the test modules being assigned a confidence score, the method comprising the steps of:

• obtaining service data from a plurality of service occasions for like machines;
• revising the confidence score for at least one test module in the fault tree based on the service data;
• and
• revising the sequence of the test modules in the fault tree based on the revised confidence score(s);
• wherein at least one test module in the fault tree is assigned a technician level score in addition to the confidence score.

A method for updating a fault tree used in diagnosis of a condition of a machine, the fault tree comprising a sequence of test modules, each of the test modules being assigned a confidence score, the method comprising the steps of:

• obtaining service data from a plurality of service occasions for like machines;
• revising the confidence score for at least one test module in the fault tree based on the service data;
• and
• revising the sequence of the test modules in the fault tree based on the revised confidence score(s);
• wherein at least one test module in the fault tree is assigned an access number in addition to the confidence score, the access number indicating the number of times a technician accessed the test module.

A system for generating a revised fault tree for a machine using statistical feedback, comprising:

• a computer system having a memory storing a fault tree;
• a database containing service data from a plurality of prior service occasions for like machines, the service occasions associated with the fault tree;
• a terminal for providing human access to the fault tree and the database;
• wherein the fault tree comprises a plurality of test modules each assigned a confidence score and wherein the confidence score is revised for at least one test module in the fault tree based on the service data and wherein the sequence of the test modules in the fault tree is revised based on the revised confidence score(s).

A system for generating a revised fault tree for use by a technician in diagnosing a condition of a machine using statistical feedback, comprising:

• a computer system having a memory storing a fault tree;
• a database containing service data from a plurality of prior service occasions for like machines;
• a set of machine instructions executed by the computer system wherein the instructions access the service data and revise a confidence score for at least one test module in the fault tree based on the service data;
• the instructions further comprising instructions revising the sequence of the test modules in the fault tree based on the revised confidence score(s).