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IBM WebSphere Host Access Transformation Services (HATS) provides tools to quickly and easily extend your legacy green-screen applications to the Web. HATS makes your 3270 and 5250 applications available as Hypertext Markup Language (HTML) through Web browsers. It also converts your host screens to a Web look and feel. Using HATS, you can improve the workflow and navigation of your host applications without any access or modification to source code. HATS has a development component called HATS Studio, which runs in WebSphere Studio. There is no specialized HATS runtime server. All of the necessary runtime information is deployed into an Enterprise Archive (EAR) file and runs in WebSphere Application Server. This IBM Redbook helps you to tailor and configure the new features that are included with HATS V5. Examples and usage scenarios demonstrate how to implement many of the new features and functions, along with those that were present in previous releases of HATS.

This redbook is the second of two volumes containing detailed coverage of the migration of a subarea network to an APPN network. It focuses on the migration steps and requirements that can be used as guidelines by others to accomplish the migration in a simple and constructive manner. The first volume (SG24-4656-01) covers the implementation of the basic VTAM APPN functions including Border Node, VR-TG and network management. The second volume completes the coverage of a typical customer's network using HPR, DLUR and APPN/HPR routers such as 3746, 2216 and 2210. In each case tested examples and definitions illustrate the theory. This redbook will be helpful for anyone considering, planning, or supporting migrating their existing subarea networks to APPN/HPR. Some knowledge of SNA subarea networks and familiarity with the functions, terms and data flows of APPN networks is assumed.