Hello Elsmar Team
I am dealing with one business unit that want our plant to perform capability study on wiring harness branch dimensions - that means all dimenstion from retainer to connectors, retainers to take outs, connector to take outs shown on the drawing and etc., which on a handmade product build on assembly boards will bring up huge variation in the process. While the data is variable I really think this study will bring 0 value add and will not help to improve the process since measurements normally vary quite a lot, although are in their LSL / USL. What do you think, does it even make sense to do that and has anyone ever performed such study ? Also I came across an information that capability study normally should be done on independent process variables (i.e., unaffected by other characteristics or operations) and in such case isn't it that all dimensions at the end would be affected by previous operations such as wire cutting, tube cutting, taping over the branches and etc. What do you think or that just doesn't make sense

?
the particular BU wants to capture this requirement in SCCAF as well in the form of an SC and for a characteristic rated as SC we should do the capability according customer requirements.
I kind of need a good advice how to approach this situation, because never been asked before to do that for wire branch/bundle dimensions as described above.
thanks in advance for your thoughts