In this article we compare the results from two trial implementations, in which self- and peer assessment was used to assess, assign marks and provide feedback on a combination of both discipline specific and generic professional attributes. The first trials were conducted using the original version of SPARK in Autumn semester 2007. The second series of trials conducted in Spring semester 2008 used SPARK PLUS . In both cases the trials were run at the University of Technology, Sydney (UTS), within the subject Design Fundamentals. Design Fundamentals in a second year subject undertaken by all engineering students at UTS. The subject's aim is to develop students' understanding of the engineering design process and to provide them with the skills to develop a small engineering project from initial concept through the design stages of requirements analysis, system design, and detailed design to the development of an alpha prototype. In addition the subject aims to build on students' skill and generic attribute development begun in the first year of their degree. Students are required to work in teams of four to produce a prototype product, two reports and make an oral presentation. The group assessment represents 50 percent of a student's overall grade.