Embedded training has long been considered a potentially efficient training concept which could provide meaningful use of available time and resources to maintain skill proficiency levels or teach new skills while on the job. A major problem is the development of embedded training which can be used effectively by a single user and which will provide management and control of the training environment. Factors such as varying levels of training complexity and measurement of trainee performance are important training issues, and must be included in the training design. The Human Factors Division at Naval Training Systems Center is presently engaged in embedded training research using the AN/SPA-25G radar repeater as a test bed. The newly developed AN/SPA-25G radar display is a computer controlled console which can be used to automatically compute calculations such as intercept courses and speeds, closest points of approach and many other similar functions formerly requiring the use of maneuvering board procedures. This embedded training project is using the capabilities of the AN/SPA-25G radar repeater and innovative scenario generation software to develop both a training process and the necessary instructional support features which will deliver and manage the radar operator training onboard ship during routine operating hours. Training programs currently being developed include equipment proficiency training for newly assigned operators and for more experienced operators, task, component training (practice of specific skills within a given task) either on the PC itself or on the AN/SPA-25G radar display, and scenario training with multiple targets.

The driving force behind the successful implementation of embedded training lies in the reduction of instructor workload while still providing quality training. One way that this can be accomplished is through a judicious application of key instructional support features. This paper discusses the methodology used in identifying 11 critical instructional support features necessary for successful embedded training in the AN/SPA-25G radar repeater and defines each of these important features.