First, we introduce some background regarding the qKAI application framework. In Section 2 follows what we see as prerequisite to utilize Open Content for higher-layered applications. Section 3 gives an overview of the qKAI application frameworks’ system design. Section 4 offers some more details concerning the qKAI hybrid data layer as one system level of the 4-tier design. Section 5 shows further services and components, Section 6 exemplifies use cases and further application scenarios. At least this contribution ends up with a conclusion and future work in Section 7.