initial commit regarding integration

README.md

@@ -6,6 +6,12 @@
 * [architecture.md](architecture/architecture.md): information on network diagram
 * [architecture.pdf](architecture/architecture.pdf): PDF export of network diagram
 
+## integration
+
+* [integration.graphml](integration/integration.graphml): network diagram (created with [yEd Graph Editor](https://www.yworks.com/products/yed))
+* [integration.md](integration/integration.md): information on network diagram
+* [integration.pdf](integration/integration.pdf): PDF export of network diagram
+
 ## OEA
 
 Visit [https://openeducation.at/](https://openeducation.at/) for more information on OEA / Open Education Austria.

integration/integration.md

+# integration
+
+network diagram of the environment of the OEA platform
+
+The **discover** element of the [OEA platform](../architecture) is embedded in an environment consisting of
+repositories on the input side and clients operated by users on the output side. Additionally machines are
+also able to utilize the platform as clients.
+
+Repositories supply metadata of digital objects stored within to the OEA platform index.
+This index is searchable by clients. Search results reveal digital objects stored in repositories.
+
+## workflow
+
+Digital objects (image, audio, video, text) are either utilized within learning management systems (LMS)
+and later on stored in repositories, or directly ingested in repositories.
+The metadata of digital objects is harvested by the OEA platform and processed to a searchable index.
+This index can be used by people and machines alike to locate digital objects.
+Further developed digital objects can then be reintroduced to a cycle of OER.
+