I tried to use quotes in replying to Jim but his use of quotes turned it into a pile of poo, so I'll try from scratch.
IMHO if a particular method of operation is important then a work instruction is required. If it isn't it can be built from a print. So the example of use of gauges in Jim's example doesn't require a work instruction (again IMHO).
Similarly PPAP submission would not warrant a work instruction. The warrant and submission level define what is required and the APQP programme defines when the data are prepared - so why have a WI?
IMHO if a particular method of operation is important then a work instruction is required. If it isn't it can be built from a print. So the example of use of gauges in Jim's example doesn't require a work instruction (again IMHO).
Similarly PPAP submission would not warrant a work instruction. The warrant and submission level define what is required and the APQP programme defines when the data are prepared - so why have a WI?