Scenario 4

UsedTextbooksOnline is a Web-based company that links stores that sell used textbooks. Databases track inventory information supplied by the stores and supply buyers with a list of stores that carry the requested book, with the price information from each store. A separate database handles the sales made through UsedTextbooksOnline.

Technology Issues

Technology issues include the reuse of business logic across applications and the deployment of centralized views of company business systems.

Environment

The current environment includes Windows and UNIX clients. The Windows clients are standardized on Microsoft Office applications as well as specific business intelligence and third-party tools. The external databases are maintained using Oracle9i on Red Hat Linux, and Informix on Windows 2000.

SequeLink® Solution

The .NET security, in combination with SequeLink authentication process, protects the privacy of the buyers and sellers, as well as securing the integrity of the UsedTextbooksOnline system.

Figure 2-4. Scenario 4

The SequeLink solution to scenario 4. A Windows 2000 client connects to SequeLink Server for Informix for buyer information in an Informix database on Windows 2000. A UNIX client accesses seller information in an Oracle database on Red Hat Linux.

In this example, you install the SequeLink Client for .NET on the application server and SequeLink Servers for Informix and Oracle on the database servers.