“…• Referred to as 'idea management systems' (e.g., Bailey and Horvitz, 2010), 'idea markets' (Soukhoroukova, 2012), 'knowledge markets' (Benbya and Van Alstyne, 2011) or 'crowdfunding platforms' (Muller et al, 2013) • Benefits from lower entry barriers when integrated with internal IT (e.g., SSO) on user side (Rohrbeck et al, 2015) • Can be integrated with tools, workflows, and (semi-) automated processes (Rohrbeck et al, 2015) Abu El-Ella et al, 2013;Bailey and Horvitz, 2010;Benbya and Van Alstyne, 2011;Bjelland and Wood, 2008;Erickson et al, 2012a;Geiger et al, 2011;Jette et al, 2015;Laredo et al, 2012, Lopez et al, 2010Muller et al, 2013;Soukhoroukova, 2012;Rohrbeck et al, 2015;Stieger et al, 2012;Vukovic, 2009;Vukovic et al, 2013;Vukovic and Naik, 2011;Vukovic and Natarajan, 2013a;2013b;Vukovic and Stewart, 2012;Westerski et al, 2011 initiated with an 'open call' through which all (or a selection of) employees are invited to participate on a voluntarily basis for the duration of the initiative (Howe, 2006;Lopez et al, 2010). Further, certain types of internal crowdsourcing designs allow solvers to participate in the evaluation and aggregation of the results (e.g.…”