Overall Strategy for the NHSE:

• Effectiveness of the NHSE will depend on discipline-oriented groups and Grand Challenge teams having ownership of the discipline-oriented software repositories.

• The information and software residing in these repositories will be best maintained and kept up-to-date by the individual disciplines, rather than by centralized administration.

• Central administration will be used instead to handle interoperation and meet common needs.

• Although the various disciplines will have ownership of the repositories, they should not be expected to develop the software and tools for building, managing, and interfacing to their repositories.

• Much useful information retrieval (IR) software is currently available, both in the form of client and server programs (e.g., http servers and WWW browsers), as and this software should be incorporated into the NHSE.