I am interested in this too. I'm trying to create a new layer scheme because I'm frustrated with my companies current layers. Often times I have to deal with models that look like a pasta salad because of all the unhidden datum layers. I try and hide all layers and parts disappear because some genius thought there should be a components and features layers. To me these are not very useful layers. I've worked with John Deere and they had a very easy to use layer scheme. I really wish I could find a similar default layer scheme that I could replicate at my current company.
A good layer system should be rule based and might have sub-layers. For example you may have 01_Datum Planes, then a sub-layer 01__Def_Planes which covers the components default datum planes that way you can unhide the only default datum planes if you want to constrain by the default datum planes.
If you find a good sample or documentation please let me know.
You picked a really old one to respond too.
Doug Schaefer has a good presentation here...
My suggestion is to go simple. Only set up a few basic layers that control the main items, planes, axis, c-sys, points, sketches/curves. I'm sure there are a few more. You can handle 99% of all parts with a very basic set of layers. The other 1%, you can simply add one or 2 (or 10 for those nasty parts), that handle the exceptions.