Archive-Months: 12 The IMPAC II Application Tester User Group serves as a value added service provided by the Computer Services, National Cancer Institute. Its overall mission focuses on testing the various IMPAC II based applications delivered by the Novell Application Launcher (NAL). The specific duty of the IMPAC II User Group is to further the use and understanding of IMPAC II based applications through testing, an open exchange of information, problems, ideas, experiences, resources and questions related to the use of client-server and web-based technology.