Despite the proliferation of Ergonomics methods, over 200 identified by Stanton et al (2005), none appear able to do the actual work of interaction design. There are methods to analyse user and system requirements as they currently exist, or might exist in the future and there are methods that evaluate the performance of users and systems. In between the analysis and evaluation, the designer is left to explore solutions using their own experience and creativity (Jenkins et al, 2009). So whilst Ergonomicsmethods can define the problem space, evaluate proposed design solutions and assess existing systems, they do not actually do the design work. The discipline of Ergonomics serves to provide theories and metrics of human-system performance and highlight the need for a socio-technical approach (Walker et al, 2008), often promoting the benefits of considering the user of the system (Stanton and Baber, 2003), but it also needs to demonstrate the effectiveness of the methods in a quantifiable manner (Stanton andYoung, 1999).