What were your schemas and explain working of Siebel architecture and the layers? | OBIEE

In the Siebel architecture, there are five parts:
• Clients
• Data sources
• Siebel analytics server
• Siebel analytics web server
• Siebel analytics scheduler
Metadata representing analytical model is developed using Siebel analytics administration tool.
In general, repository is divided into three layers:
Business:
Data sources are modeled into dimension and facts.
Physical:
Data sources are represented.
Presentation:
User’s view of the model is specified.