As Kevin says, random audits could be used. If you have a quality system in place (ISO 9000ish) you could use that to implement an audit whereby staff can be randomly assessed against a list of parameters suitable to your needs. We have a skills matrix but it is impossible to keep on top of, we have more than 40 engineers/ techs and several thousand different makes & models of equipment. You could look at using PDR's (Professional Development Reviews) we have tham at our place mainly beecause we are part of the Diagnostic Imaging group and they HAVE to have PDR's as part of their registration requirements. It would be rude of me not to return fire at RoJo but there are better registration models that you-know-who?
