Knowledge Node Summary

An installation fault is likely to be caused by a mistake in connecting equipment or in wiring. This is likely because equipment will have been checked before shipping. In service faults are likely to be the result of some intervention by a person on the customers premises or some other works that is or has just taken place there. It is always wise to begin by discussing possible causes with the customer so that at least a broad fault location may be identified. There may also be a fault history that is relevant.

A summary of expert opinion:

The knowledge named 'System diagnostics' is considered to be very important.
In addition, the knowledge is thought to be very difficult to replace, it is learned mainly by experience but needs study, and there are 3 people available to deliver this knowledge.
Opinion is that it it requires 2 people to deliver this knowledge, it is mostly specialised knowledge, and is modelrately stable knowledge.
The learn time for this node given an understanding of the prerequisites, is about 3 months. The estimated learn time for the entire knowledge structure of this node is about 1 year.