The design of a computer-aided instructional module for NOHIMS be developed in five steps during phase i. The first step will be to select the best approach(es) for designing the module. The tentative planned approach is new and innovative which we are calling instruction on demand (IOD). IOD will supplement more conventional forms of system orientation and training, and provide system users with instruction to the extent desired and in actual operational contexts. In the second step, the critical NOHIMS data entry and retrieval functions that must be addressed by the IOD module will be specified. Step 3 will involve identifying the knowledge required by a NOHIMS user, including the overall purpose and nature of the system, conventions and rules of interaction, planning knowledge, and encoding and decoding rules. The instructional approach and explicit instructional objectives of IOD for NOHIMS will be defined in step 4. The final step will be to determine the specific IOD functions to be implemented and the detailed IOD architecture. The resulting design will lay the foundation for the development of an IOD system for NOHIMS to be implemented during phase II.