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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

BLOCK V.3: REVISE SYSTEM

Introduction

At the completion of the preparation of the internal and external evaluation reports, the data contained in those reports must be used as the basis for deciding which elements of the system require revision. The internal and external evaluation reports will document course performance on an internal basis and the external evaluation report will have documented the results of graduates on the job.

A careful analysis must be made of the data contained in the reports in order to determine the need for revision. Revision needs occur as a result of changes in doctrine, procedures, weapons systems, or other major external change as well as the results of the performance of the instructional program. Revision can occur in any part of the system. Revisions can be undertaken to improve performance of the students, to reduce student time required to complete the instruction, or to try to retain the appropriate level of effectiveness at a lower cost. Estimates of the potential benefits of revision are made on the basis of the evaluation data. The specialists within each of the departments concerned with revision decide upon the tradeoffs which need to be made in order to make the revision worthwhile.

Rationale

Data based system revision undertaken as a result of careful consideration of the alternatives is the heart of the ISD process. The

continued...

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