Duwamish Books, Phase 4

Microsoft Developer Network

August 1999

Phase 4 of our migration sample brings the fictional Duwamish Books to the Web. If you want to get the sample now, you can go to the download page. However, if you want to spend some time reading about how we designed, developed, and tested the application, you can choose from one of the articles below:

• "Duwamish Books, Phase 4: Welcome to the Web"

  Describes the changes to the Duwamish Books sample as it moves from a business model to a Web-based store. Includes a discussion on the Phase 4 architecture.

• "Building a Search Engine for the Duwamish Books, Phase 4 Database"

  Discusses the design and development of a fast, efficient search engine for the Duwamish Books, Phase 4 database. Includes discussion of database optimization and the English query search functionality.

• "Collecting Payment with an Online Business"

  Discusses the Duwamish Books, Phase 4 sample application payment functionality. Includes overview information about transactions, authorization codes, and authorization methods.

• "Creating a Page Cache Object"

  Demonstrates how to create a highly versatile cache object that works in any COM-enabled environment. Discusses reasons to create your own cache and provides implementation details, including plenty of Microsoft® Visual C++® code.

• "The Duwamish Books, Phase 4 Business Logic Layer API Reference"

  Documents the COM interfaces of the Phase 4 Business Logic Layer (BLL) component.

• "The Duwamish Books, Phase 4 Cache Object API Reference"

  Documents the COM interfaces of the Phase 4 Cache component.

• "Duwamish Books, Phase 4 Database Schema"

  Provides a graphical representation of the Phase 4 database, including tables, fields, and relationships.

• "The Duwamish Books, Phase 4 Workflow API Reference"

  Documents the COM interfaces of the Phase 4 Workfolw (WFL) component.

• "Installing Duwamish Books, Phase 4"

  Provides instructions for setting up Phase 4 of the Duwamish Books sample application. Includes system requirements, system configuration details, installation instructions, and instructions for running quick "smoke tests" of the installation.

• "Migrating a Business Logic Component to a Web Application"

  Describes the migration strategy for the Duwamish Books sample Phase 4 Business Logic Layer (BLL) component. Discusses immutability of published COM interfaces, binary compatibility and development tools, and the Duwamish Phase 4 BLL and migration components.

• "Normalizing the Duwamish Books, Phase 4 Database"

  Discusses the process and benefits of normalizing the Duwamish Books sample database for use with a Web application.

• "Performance Testing a Scalable Application"

  Discusses the methodology and tools used in testing Phase 4 of the Duwamish Books sample application. Test results are provided and compared with the performance goals set for the sample.

• "Setting Performance Goals for Duwamish Books, Phase 4"

  Discusses the methodology used to calculate the performance goals for Phase 4 of the Duwamish Books sample application and provides a sample calculation to determine performance goals for a hypothetical business scenario.

• "Three Approaches for Three Client Types"

  Details the new Web-based client strategy employed in Phase 4 of the Duwamish Books sample application, including the HTML 3.2, Internet Explorer 4.0, and Internet Explorer 5 solutions. Technologies used include XML, data binding, and ASP.

• "Workflow Design for a Web Commerce Application"

  Describes the workflow layer used in Phase 4 of the Duwamish Books sample application. Includes discussion of the XML to HTML data transformation, the custom Phase 4 cache, ASP script and handling user context. Contains plenty of code.

Comments? We welcome your feedback at duwamish@microsoft.com.