WEB Towards an EMMO compliant domain ontology for production processesTuesday (22.09.2020) 14:45 - 15:00 M: Modelling and Simulation 2 Part of:
EMMO – the European Materials and Modelling Ontology  – is a multidisciplinary effort to develop a standard representational framework based on current materials and modelling knowledge. It has its foundations in physical sciences, in analytical philosophy and in information and communication technologies. It is aimed to provide the connection between the physical world, materials characterization world and materials modelling world.
EMMO as an upper ontology provides the framework for integration of an expandable number of domain ontologies. EMMO defines e.g. classes for “Material” and “Process” as connection points for respective and relevant domain ontologies in the area of production.
Manufacturing and production engineering as well as the development of new and better materials and components have an enormous economic importance and their digitalization is of utmost importance. Therefore we present ongoing activities in the development of EMMO compliant domain ontologies for (i) production systems, (ii) production processes and (iii) materials.
The ProductionProcess ontology is based on the DIN norm for manufacturing processes and the Reference Architectural Model for Industry 4.0 (RAMI 4.0) . The general terms and entities are defined/translated according to C.I.R.P.  and are supplemented with some terms for other processes e.g. Additive Manufacturing, Separation Processes and with some process specifications for fluids.
The Materials ontology defines multiphase materials as superclasses, which are classified by the dominant behavior of the matrix phase. Individuals of the LiquidSolid class (e.g. a slurry) behave like a liquid while a SolidLiquid individual (e.g. an infiltrated solid) behaves essentially like a solid. Most technical materials used in manufacturing processes are in the SolidSolid class, which has subclasses for composites, ceramics, polymers and metallic alloys.
Each of these domain ontologies follows the EMMO best practices by using a well-defined and limited number of relations between the classes and a standardized syntax to keep future domain ontology development consistent with the EMMO concept.
The presentation concludes with an example of an ontological description of a ProductionProcess havingParticipant a ProductionSystem and havingPart Sensor- and ActuatorDataStreams eventually pouring into the DataLake for further exploitation.