Interoperabilität von Software Art. 6 der Computerprogramm-Richtlinie aus heutiger Sicht Wiebe Andreas This article reviews Article 6 of the Software Directive and discusses the need for a revision. Beyond clarification of the scope of the very limited provision on reverse engineering, it seems that the introduction of the clause into copyright was unfortunate. The indirect protection of ideas by prohibiting reverse engineering is foreign to the copyright concept. Permitting reverse engineering altogether would promote research and development and further other goals like ICT security. Innovation would not be retarded, which is the reason why US trade secret law permits reverse engineering based also on economic arguments. The notions of compatibility Article 6 tries to address are better dealt with by Competition Law, which was demonstrated by the Microsoft Decision of the European Court in 2007. competition law copyright limitation decompilation interfaces interoperability know-how protection of ideas research reverse engineering 340 periodical academic journal JIPITEC 2 2 2011 89 96 2190-3387 urn:nbn:de:0009-29-30812 wiebe2011