- S. L. Teal, Alexander I. Rudnicky. 1991. CHANGES IN USER TASK STRATEGY DUE TO SYSTEM RESPONSE DELAY. Abstract: Despite recent advances in computer technologies, system response time remains an important factor in determining system usability, especially for newer and yet unperfected technologies such as speech recognition. Previous investigations of response delay have produced contradictory results. This study attempts to systematically investigate the relationship between response delay and a user's choice of task strategy. We address two questions. First, does response delay have a significant effect on user performance? Second, if response delay does affect user performance, can we define a model that describes the relationship?
