Physical architecture

The physical configuration of the Oracle Central Designer software includes:

• A database server machine.
• One or more application server machines. For more information, see Web farm capabilities.
• One or more client machines.

There are three configuration options for the Oracle Central Designer software.

Configuration	Description
Single-tier	The application server, database server, and client applications run on the same machine.
Two-tier	The application server and database server run on the same machine, and the client applications run on another machine.
Three-tier	The database server, application server, and client applications each run on a separate machine.

Note:

• For optimum performance, Oracle recommends a three-tier configuration.
• If the application server and database server are on the same computer, you must install the Oracle Server software and Oracle Client software in the same home.