Start Level 1 Node: Metadata RepositoryMetadata RepositoryEnd Level 1 Node: Metadata Repository
   Start Level 2 Node: BI Metadata SearchBI Metadata SearchEnd Level 2 Node: BI Metadata Search
   Start Level 2 Node: Displaying GraphicsDisplaying GraphicsEnd Level 2 Node: Displaying Graphics
   Start Level 2 Node: HTML ExportHTML ExportEnd Level 2 Node: HTML Export
   Start Level 2 Node: Exchanging Metadata in XMI FormatExchanging Metadata in XMI FormatEnd Level 2 Node: Exchanging Metadata in XMI Format
   Start Level 2 Node: Calling the Metadata Repository as an HTTP ServiceCalling the Metadata Repository as an HTTP ServiceEnd Level 2 Node: Calling the Metadata Repository as an HTTP Service