The Meta data information is stored in the repository. The repository file’s extension is “.rpd.” All of the rules for security, data modelling, aggregate navigation, caching, and connection are kept in metadata repositories with OBIEE Server. Multiple business models can be stored in each metadata repository. Multiple repositories can be accessed via OBIEE Server.
Repository is divided into three layer
- Physical – Represents the data Sources.
- Business – model the Data sources into Facts and Dimension and apply business logic.
- Presentation – Specifies the user’s view of the data rendered in OBIEE answers client