Friedewald, MichaelBlind, KnutEdler, Jakob2018-01-162018-01-1620022002https://dl.gi.de/handle/20.500.12116/12285In this article we present the results of two empirical studies focusing on the structure and extent of the innovation activities of the German Software Industry and analyze distinctive features of Software Innovations. We distinguish the activities of the primary (core) Software Industry and secondary industries such as Mechanical and Electrical Engineering, Motor Industry and Telecommunications. A special focus is put on the question if innovations in Software are sequential, on the role of Open Source Software and the importance of interoperability.innovationinteroperabilityopen source softwaresequential innovationssoftware industryText/Journal Article1861-8936