From ae2148038cc4d4c90ac9ac2a4a48045d96dc875e Mon Sep 17 00:00:00 2001 From: Ingo Friese <ingo.friese@telekom.de> Date: Thu, 23 May 2024 15:02:56 +0000 Subject: [PATCH] Data Model Mapping Picture --- TS-0041-oneM2M-SensorThings_interworking.md | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/TS-0041-oneM2M-SensorThings_interworking.md b/TS-0041-oneM2M-SensorThings_interworking.md index cef3170..0a657ae 100644 --- a/TS-0041-oneM2M-SensorThings_interworking.md +++ b/TS-0041-oneM2M-SensorThings_interworking.md @@ -73,6 +73,7 @@ References are either specific (identified by date of publication and/or edition - <a name="_ref_1">[1]</a> OGC SensorThings API "Part 1: Sensing Version 1.1" (http://www.opengis.net/doc/is/sensorthings/1.1) +- <a name="_ref_2">[2]</a> oneM2M TS-0033 (V3.0.0): "Interworking Framework" ## 2.2 Informative references @@ -174,6 +175,7 @@ The Sensing Entities data model and the purpose of data within the data model di - Data embedded in the Sensing Entities Data Model, like "historic locations" should be seen as data for documentation purposes. + # 6 Architecture Model of OGC/STA to oneM2M interworking ## 6.0 Introduction @@ -189,12 +191,16 @@ The basic interworking enables applications that are connected to an oneM2M-base ## 6.1 OGC/STA-to-oneM2M Data Model Mapping -According to oneM2M TS-0033 [i.4] a representation of a non-oneM2M Proximal IoT function/device in a oneM2M-specified resource instance is to be synchronized with the entity that it represents. -This means that the OGC/STA data model is represented in the hosting CSE. The data in the OGC/STA server are organized as Sensing Entities [i.3] (see Figure 5.1-1: STA Sensing Entities data model). +According to oneM2M TS-0033 <a href="#_ref_2">[2]</a> a representation of a non-oneM2M Proximal IoT function/device in a oneM2M-specified resource instance is to be synchronized with the entity that it represents. +This means that the OGC/STA data model is represented in the hosting CSE. The data in the OGC/STA server are organized as Sensing Entities <a href="#_ref_1">[1]</a> (see Figure 5-2: STA Sensing Entities data model). The oneM2M structure for data models is a tree-structure where data are organized in containers or trees of containers. -The OGC/STA data model is a relational one, as used in databases, and not hierarchical. Thus, it creates a challenge for full interworking of all data captured in the OGC/STA data model. +The OGC/STA data model is a relational one, as used in databases, and not hierarchical. Thus, it creates a challenge for full interworking of all data captured in the OGC/STA data model. In this technical specification, only a limited set of data is mapped between OGC/STA and oneM2M. +<figure> + <img src="media/ogc_non_model.png" alt="non_mapping"> + <figcaption>Figure 6.1-1: OGC data model cannot directly be mapped to oneM2M</figcaption> +</figure> <mark>The following text is to be used when appropriate:</mark> -- GitLab