“…However, this same ambiguity, important to conceptual design, has the potential to inhibit clear communication and so impact shared understanding, appropriate concept ideation and choice. Although progress has been made in understanding how sketches and illustrations are used as drivers for design practices (Goel, 1995;Lawson, 2004;Bar-Eli, 2013;Goldschmidt and Rodgers, 2013;Self et al, 2014), less is known of interaction effects between differences in the design representations themselves (Pei et al, 2011) and stakeholder expertise as implicating how they are understood. With the growing complexity of products and product services (Norman, 2011), co-creativity and competitive design-driven innovation (Verganti, 2008) will increasingly be best achieved through shared understanding across a diversity of knowledge, skills and expertise.…”