Internal
Repositories 
Use
Several internal repositories are used in the standard delivery. They are controlled by Knowledge Management. They are used for storing and staging various content and metadata and for navigating in this data. These repositories are preconfigured and preactivated in the standard delivery.
Features
The following internal repository manager and repositories are used in Knowledge Management.
Note that by default, some repositories that contain system data are not displayed in the main directory.
Supports the entire spectrum of Knowledge Management functions.
The following CM repositories are contained in the standard delivery:
○ /documents (for managing content such as text documents)
○ /collaboration (for managing Collaboration content such as feedback)
○ /discussiongroups for managing discussion items
○ /userhome for personalization data and managing favorites
○ /grouphome repository for managing group-specific favorites
○ /rolehome repository for managing role-specific favorites
○ /reporting_backend for storing report-specific data
○ /taxdata for storing classification data persistently
○ /~system for storing low-level data such as thumbnails
For the SAP NetWeaver scenario Information Broadcasting, the CM repository /BIuserhome is used to manage user-specific BI data.
Provides access to taxonomies used for document classification.
Navigation in a taxonomy repository features special functions (such as creating ad-hoc links to documents associated with a given category in a taxonomy). The taxonomy repository manager is not a fully-fledged repository manager, since it does not actually store classification data persistently. The CM /taxdata repository is used for this.
The taxonomy repository /taxonomies is part of the standard delivery.
● User Management Repository Manager
Provides read-only access to resources that represent users.
The repository /um is used for this in the standard delivery.
● Content Exchange Repository Manager (ICE)
Provides access to administration data and content distributed using the content exchange service.
The repository /ice is used for this in the standard delivery.
Allows the use of short IDs for access to objects
The repository /guid is used for this in the standard delivery.
Is used to search for objects (portal pages and iViews) in the Portal Content Directory (PCD)
The repository /pcd is used for this in the standard delivery.
● Reporting Repository Manager
Offers access to report-specific data.
The repository /reporting is used for this in the standard delivery.
● Virtual Root Repository Manager
Provides a virtual main directory that gives you access to all repositories defined in KM.
The repository /vroot is used for this in the standard delivery. However, it does not appear in the main directory itself. Rather, it is the technical prerequisite for displaying the main directory.
● Entry Point Repository Manager
Generates and manages entry-point-specific data.
The repository /entrypoints is used for this in the standard delivery.
● Thumbnail Repository Manager
Uses plug-ins to generate thumbnails of documents.
The repository /thumbnail is used for this in the standard delivery.
● Calendar Repository Manager
Uses transports to enable read and write access to meetings and appointments that are stored on the Groupware servers.
This repository manager is used by Collaboration.