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Interservice Procedures for Instructional Systems Development :
Executive Summary and Model (Continued...)
by Robert K. Branson, Gail T. Rayner and J. Lamarr Cox

and chosen, but also in terms of the impact these decisions have on future training and personnel decisions.

The first decision that will need to be made by the manager is which of the JPMs shall be developed first. Since there will be a rather lengthy list of tasks for which JPMs will be required, these JPMs must be ordered and some done before others in order to accomplish the work in a reasonable period of time. In the process of analyzing the tasks for performance, it will become apparent that some tasks will be relatively straightforward and easy to measure while others will be rather complicated and require more time. Some JPMs may require special kinds of simulators and training devices which will require a long lead time for their acquisition.

A second kind of decision will involve a large variety of resource and technical trade-offs. The technical characteristics of the JPM may require that it be administered under field conditions in as realistic an environment as possible. On the other hand, the time and resource constraints may limit the number of people who could be tested under those conditions. It will be the manager's responsibility to examine the total number of JPMs required, the total time and resource requirements, and to make reasonable trade-offs among these requirements and constraints.

A third kind of analysis and decision will involve those JPMs in which the testing errors from the past have been known to misclassify those who took the test. That is, the test has either indicated people were competent or qualified who were not, or, it has indicated that qualified people were not qualified. Either kind of error is extremely

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