oneM2M Semantic enablement and ASD (Advanced Semantic Discovery) for (AE) "Resources"
The oneM2M Architectural Model in oneM2M Semantic enablement specification is based on the generic oneM2M Architecture for the Common Service Layer specified in oneM2M TS Functional Architecture.
The Core Functionality supporting Semantics resides at various CSEs, providing Services to the AEs via the Mca Reference Point and interacting with other CSEs via the Mcc Reference Point.
The Semantics (SEM) CSF (Common Service Function) is an oneM2M Common Service Function (CSF) which enables Semantic Information Management (SIM) and provides the related functionality based on this Semantic Information. The Functionality of this CSF is based on Semantic descriptions and implemented through the specialized resources and procedures described in oneM2M Semantic Enablement specification
The SEM CSF includes Specialized Functional Blocks such as: SPARQL Engine, Repositories for Ontologies and Semantic Descriptions, which may be implemented via Permanent or Temporary Semantic Graph Stores, etc.
oneM2M Semantic enablement for (AEs) and ETSI Smart M2M Resource ASD (Advanced Semantic Discovery)
Semantic Discovery in presence of a "Network" of M2M Service Providers (M2MSPs)
The Advanced Semantic Discovery (ASD) aims to discover AEs (also called Resources) that are registered/announced to some CSEs.
The ASD could start from any AE, even these ones not belonging to the same Trusted Domain.
The ASD differs from the usual one present in oneM2M in the sense that one (or many) AE could be searched for even without knowing its identifier, but just knowing its TYPE or ONTOLOGY membership, as shown in Figure 6.3.1-1.
Advanced Semantic Discovery (ASD) in Figure 6.3.2-1 below describes oneM2M as Semantic Discovery involving multiple CSEs.
ASD within Distributed Network of CSEs belonging a single Service Provider & across different IoT Service Providers.
Example of SRT (Semantic Routing Table)
The Ontology Mapping Task performed by
=> Create Operation or
=> Update Operation against an <OntologyMapping> Resource on a Hosting CSE.
A Retrieve operation against the same <OntologyMapping> Resource shall be used to get the result of Ontology mapping. A Delete operation against a <OntologyMapping> Resource shall follow the basic procedure as specified.
