diff --git a/TS-0041-oneM2M-SensorThings_interworking.md b/TS-0041-oneM2M-SensorThings_interworking.md
index 30540e85d5d6283692d1235c85453f8edba409fe..7dd9700e98b7b235c25edc5fac9d7f9d2ff612e0 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
@@ -174,8 +175,33 @@ 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.
-## 5.1 User defined subdivisions of clause(s) from here onwards
-<Text>
+
+# 6 Architecture Model of OGC/STA to oneM2M interworking
+
+## 6.0 Introduction
+
+Figure 6.0-1 shows an architecture approach for an Interworking Proxy Entity (IPE) between oneM2M and the OGC SensorThings API. The IPE is located between a oneM2M CSE and an OGC/SensorThings API (STA)-Server.
+
+The basic interworking enables applications that are connected to an oneM2M-based system to get data from sensors that are connected to an OGC/STA server. Furthermore, an application that is connected to an OGC/STA server will be able to get data from sensors that are connected to an oneM2M-based system.
+
+<figure>
+ <img src="media/STA_oneM2M_architekturbild_01.svg" alt="arch_overview">
+ <figcaption>Figure 6.0-1: IPE architecture overview</figcaption>
+</figure>
+
+## 6.1 OGC/STA-to-oneM2M Data Model Mapping
+
+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. Thus the OGC/STA data model has to be represented in the hosting CSE. The SensorThings data model is comprehensive and should be regarded as a n:m relational database structure, holding both:
+- sensor (IoT-data); and
+- administrative data (like historic locations or historic products IDs).
+
+The IPE shall map the 'result' attribute of an OGC/STA 'Observation' to the 'content' attribute of a oneM2M <contentInstance>, and vice versa as shown in Figure 6.1-1.
+
+<figure>
+ <img src="media/data_mapping.svg" alt="data_mapping">
+ <figcaption>Figure 6.1-1: OGC / STA-to-oneM2M data model mapping</figcaption>
+</figure>
+
<mark>The following text is to be used when appropriate:</mark>
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new file mode 100644
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