“…Category 1. Discusses non-functional properties in relation to tool integration (53%) (Arnold, 1994), (Tilley, 1994), (Daberitz and Kelter, 1995), (Wong, 1999), , , (Grundy et al, 2006), (Bull, 2008), (de Alwis and Murphy, 2008), (Kurniawan and Abramson, 2008), (Ertürkmen, 2010), , (Kurniawan and Abramson, 2011), , (Biehl et al, 2012b), (Qureshi, 2012) Category 8. Evaluates standards, reference models or specications related to tool integration (8%) , (Brown, 1993a), , (Zelkowitz, 1993), (Cuthill, 1994), (Barrett et al, 1996), (Wallace and Wallnau, 1996), (Shi, 2007), (Skoglund, 2012) Category 9.…”