The Scenario 3 installation in Figure 2-3 contains a UNIX (in this example, Tru64) server hosting the Oracle Database and the complete Warehouse Builder installation, including the Design and Runtime Repositories, and one or more Target Schemas. This server can also serve for design work. Optionally, additional computers designated as Design Clients have a variety of operating systems: in this example, Microsoft Windows, Linux, and Solaris. These design clients also run the Design and Runtime Audit Browsers, and access the Design and Runtime Repositories on the UNIX server.