Do Management and IT Consulting Firms Provide Different Types of Innovations to Their Clients? An Activity Analysis - Drechsler, A.; Dörr, P.; Hadouyat, Y.; Corten, C. (Dennis Kundisch, Leena Suhl, and Lars Beckmann (Eds.): Tagungsband der Multikonferenz Wirtschaftsinformatik 2014, 2014)