The COMVIK approach refers to the second hurdle to software patentability.
Here, only those features in the patent claim which contribute to the solution of a technical problem are taken into account in the inventive step assessment, whereas the non-technical features are ignored.
For a more in-depth explanation, look here. The knowledge base contains many examples of patentable and unpatentable software.
Patrick is a European patent attorney at BARDEHLE PAGENBERG. He specializes in software patents in Europe both from a prosecution and litigation point of view.