I do not know how much time you were given to develop this. Here is an abstract of a paper. I am not sure if you have seen this.
Wiley InterScience :: Session Cookies
Here is a link to how Hewlett-Packard, where our son worked as a dierector, developed a CM for its sales force. The Competency Modeling Approach <link updated to site home> I suggest that you write to Maggie LaRocca.
Here is another link to a very useful page http://www.careeronestop.org/compete...efinition.aspx If you click on the model and various aspects of the model more details are revealed. I hope this solves your problem.
The above were found by Google search at competency models + comparison - Google Search
Have a nice day
A retired academic in UK (in India at present)
16th December 2009 From United Kingdom