Part numbers for components

[TBiby@xxxxxxx]

I'm looking for ideas on how to assign part numbers for components.  We have
a model for finished goods so that they contain logic and commonality but
the piece parts have gotten out of hand.  Until recently, our cad package
assigned the next number and that is what we used.  We now have new CAD
package-you can assign your own number and new Engineering Mgr who wants to
do it the way his previous company did it.  Previous company was HUGE-we are
really small and don't have the overhead to do the way he wants.

Can you guys give me ideas on how you all assign part numbers.

We manufacture test equipment-electronic components.  Some parts are
painted, screened, or plated after they come in from outside. 

Any and all ideas will be appreciated.

Thanks!

Teresa Biby