In disconnected mode, BI Publisher libraries are already installed as part of the Siebel installation by making the core libraries available (in $SIEBEL_HOME/CLASSES) for report generation.
Please take a look at ‘ Siebel Reporting Architecture with BI Publisher’ for the detail architecture of connected and disconnected modes.
Using views in a Siebel application, you can run such pre-installed reports or create your own custom reports in both the connected and disconnected modes. Siebel Business Applications ship with pre-developed BI Publisher reports.
