1. Matching Resources with CSFs Group Name: WG2 (ARC) Source: Hongbeom Ahn, LG Electronics, Hongbeom.ahn@lge.comHongbeom.ahn@lge.com Meeting Date: 2013-09-12 (ARC 6.4) Agenda Item: Resource and CSFs mapping

2. oneM2M Service – Current Definition of oneM2M Service (not officially agreed) A Service is expressed over an X or Y reference point as an API message referring to functions of one or more Common Service Functions (CSFs) Thanks to this Comprehensive definition – Representation of oneM2M Service? Resource-based API Services that have Resource-based APIs use the requested URI and HTTP server methods issued by the client along with submitted or requested media type to determine the client’s intent © 2013 oneM2M Partners oneM2M-ARC-2013-0375-Matching_Resource_with_CSFs2 A Service is expressed over an X or Y reference point as an Resource-based API message referring to functions of one or more Common Service Functions (CSFs)

3. CSFs and Resources AID CSF SEC CSF DMR CSF CMDH CSF DMG CSF NSE CSF … Resource 1 Resource 2 Resource 3 Resource n … A resource could refer functions of one or more CSFs © 2013 oneM2M Partners oneM2M-ARC-2013-0375-Matching_Resource_with_CSFs3 Note: this diagram and relationship is just an example

4. Concerns The descriptive text of each CSF has been defined Some resources as services will be defined, but no clear relationship between CSFs and resources – Independently defined (even in the different section) Sooner or later we might lose the CSF description since the defined resources will be understood as functions and services provided by oneM2M. No value to see the CSF description even though the description is a good conceptual information and guideline to define the final resources for us – Our potential readers and developers would focus on the defined resources © 2013 oneM2M Partners oneM2M-ARC-2013-0375-Matching_Resource_with_CSFs4

5. Proposal In each resource section, include a paragraph that indicates related CSFs – If we finally define the sub-functions of each CSF, each resource section would have the sub-function level matching with more detail information – The related CSFs can be continuously modified based on our analysis – Find the attachment below © 2013 oneM2M Partners oneM2M-ARC-2013-0375-Matching_Resource_with_CSFs5