“…In subsequent years, the academic discussion continued to re-emphasize and refine the adequacy of a partial integration of accounting systems according to Coenenberg (1995), highlighting the functions of accounting systems (e.g., Günther and Zurwehme, 2008; Küting and Lorson, 1998a; Männel, 1997; Melcher, 2002; Müller, 2006; Trapp, 2010; Wussow, 2004) – particularly against the background of the IFRS (e.g., Hirsch and Schneider, 2010; Weide et al, 2011). The task force “Controller und IFRS” (Management Accountants and IFRS) of the International Group of Controlling (an association of executive education service providers from German-speaking countries), consisting of academics and practitioners, developed an integrated accounting system model and argued that the appropriate degree of convergence between externally disclosed profit numbers and the measures used for decision-facilitating purposes depends on contextual factors such as vertical integration or a company’s organizational structure (Weißenberger and IGC, 2006).…”