Content Manager

Content Manager is the IBM Cognos BI service that manages the storage of information related to many running applications in the system. Application like 

• Customer Application Data,
• Configuration Data, 
• Scheduling the Information
• Retrieving or storing the report specification
• Models, 
• Metrics, 
• Reports specifications,
• Reports output 
• Security

Content manager stored information in a content store which is a part of data tier (Tier 3). Information is maintained in a relational database.

One IBM Cognos BI installation may have more than one content manager, each on different computer. One content manager is active at one time and other are on standby.

Application Tier

The IBM Cognos BI applications tier contains one or more IBM Cognos BI servers. It is responsible for running all the services requested by a gateways. It receives requests from gateways and send it to appropriate service.

Applications Tier Components-

1. Dispatcher, it operates services and routes requests.
2. Content Manager, it manages the storage of customer application data.

IBM Cognos BI server runs requests, eg- report studio, analysis studio, query studio, which are forwarded by a gateway. Apart from that IBM Cognos BI server also renders the IBM Cognos Connection and Metric studio interfaces.