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+# Metadata Overview
+
+The metadata of each service is listed in the following folders. The folder contain the "database" information of the services grouped by its purpose as listed below.
+
+* **services**: contains each service
+* **service_categories**: each service belongs to one service categorie
+* **documents**: every service has none to multiple documents e.g. UMN or API-Ref. If the service has at least one document the "service based view" (SVB) is used. Otherwise the root document starts at the landing page of the service.
+* **repositories**: contains the location of the source code for each helpcenter instance