“…Amabile, 1996;Elster, OS-12-0089 6 2000; Stokes & Fisher, 2005;Lawson, 2006) to ad-hoc typologies that focus on domainspecific constraints (e.g. Gross, 1986;Gero, 1990;Goldratt, 1990;King & Majchrzak, 1996;Nuseibeh & Easterbrook, 2000;Darlington, 2002;Andrews, 2003;Chevalier & Ivory, 2003;Abuhamedeh & Csikszentmihalyi, 2004;Johnson, 2005;Lewandowski, 2007). In the creativity literature, ad-hoc conceptualizations tend to define constraints based on their effects on the creative endeavor (Amabile, 1982;Stokes, 2008;Sternberg & Kaufman, 2010 (Onarheim, 2012, p. 324), and acknowledge that many constraints may exist at any point in a project (Hull, Jackson & Dick, 2005).…”