BusinessObjects Enterprise Administrator's Guide

Architecture overview and diagram

BusinessObjects Enterprise is a multi-tier system. Although the components are responsible for different tasks, they can be logically grouped based on the type of work they perform. If you are new to BusinessObjects Enterprise, use this section to gain familiarity with the BusinessObjects Enterprise framework, its components, and the general tasks that each component performs.

In BusinessObjects Enterprise, there are five tiers: the client tier, the application tier, the intelligence tier, the processing tier, and the data tier. To provide flexibility, reliability, and scalability the components that make up each of these tiers can be installed on one machine, or spread across many.

The following diagram illustrates how each of the components fits within the multi-tier system. Other Business Objects products, such as OLAP Intelligence and Report Application Server, plug in to the BusinessObjects Enterprise framework in various ways. This section describes the framework itself. Consult each product's installation or administration guides for details about how it integrates with the BusinessObjects Enterprise framework.

The "servers" run as services on Windows machines. On UNIX, the servers run as daemons. These services can be "vertically scaled" to take full advantage of the hardware that they are running on, and they can be "horizontally scaled" to take advantage of multiple computers over a network environment. This means that the services can all run on the same machine, or they can run on separate machines. The same service can also run in multiple instances on a single machine.

For example, you can run the Central Management Server and the Event Server on one machine, while you run the Report Application Server on a separate machine. This configuration is called "horizontal scaling." If the Report Application Server is running on a multi-processor computer, then you may choose to run multiple Report Application Servers on it. This configuration is called "vertical scaling." The important thing to understand is that, even though these are called servers, they are actually services and daemons that do not need to run on separate computers.

Note:    BusinessObjects Enterprise Standard requires all of the components to be installed on one machine.

The remainder of this section describes each tier, the key BusinessObjects Enterprise components, and their primary responsibilities:

• Client tier
• Application tier
• Processing tier
• Data tier

Tip:    When you are familiar with the architecture and want to customize your system configuration, see Chapter 4: Managing and Configuring Servers and Chapter 6: Scaling Your System.

Note:    BusinessObjects Enterprise supports reports created in versions 6 through XI of Crystal Reports. Once published to BusinessObjects Enterprise, reports are saved, processed, and displayed in version XI format.