More and more executives are now listing professional skills along with technical ones among their expectations from information Sciences and Technology and Engineering graduates. In fact, the lack of professional skills in project teams has been identified as one of the top contributors to the high failure rate of complex engineering projects. As a response, academic programs have incorporated professional skills in their curricula, which led to the challenge of assessing the relevant student development appropriately. This paper proposes using a Model of Domain Learning (MDL) assessment framework for this challenge. Moreover, the advantages of using this framework over the existing assessment tools are discussed. An empirical study, which assesses the teamwork communication skills, is also presented to demonstrate the practicality and effectiveness of the proposed framework.