This presentation provides an overview of the progress on Specialist Task Force 641 Task 2, and STF 653. "The overall goal of STF 641 Task 2 and STF 653 is to homogenise and facilitate the use of SAREF and existing 11 SAREF domain mapping by: • SAREF revision based on harmonisation using common ontology patterns • SAREF portal automatization (tooling) for ontologies with common patterns" This presentation will be based on the description of STF 641 and 653, progress report of Milestone A of STF 653, Stable draft TR 103 781, and initial development towards the factorization of the SAREF suite of ontologies.