AbstractIndustrie 4.0 aims at improving value chains and value-added networks in industry. Technologically the approach is based on the introduction of cyber-physical systems. Their capabilities form the basis for smart systems. This paper presents technological approaches for Industrie 4.0 and introduces use cases as a specification technique for application scenarios. A demonstrator for additive manufacturing is presented. Lessons learnd from this demonstrator have led to the definition of capabilities for vertical and horizontal integration within Industrie 4.0.