T his study is to propose an integrated task analy sis model that may play a part in suggesting a guideline for successful performance of the whole procedures of task analy sis in instructional systems development . In order to identify the appropriate boundaries and placement of the task analysis , the model indicates the definition of task analy sis . It also prescribes several neces sary conditions to be considered for effective task analysis . Moreover , it suggest s systematic st eps and the related sub - st eps to be followed in the real- world situation of task analysis with principles and methods for each step. In terms of the degree of practical utility in performing the overall procedures of task analy sis, this study tries to offer a \'brand- new \' paradigm of task analysis that would surpass a variety of the current task analysis methods that are limited to discreet and superficial characteristics .