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Designing and Engineering Time: The Psychology of Time Perception in Software by Steven C. Seow Ph.D.

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Chapter 3. User and System Response Times

Well before personal computers became popular, researchers knew that the timing between the user’s command and the system’s response would be critical in maintaining an optimal user experience. In many ways, human-computer interaction is like a conversation. This chapter introduces both user and system response times and discusses various industry standards on maximum acceptable system response times.

The Silicon-Carbon Conversation

Dave wanted his computer to simply open the doors, but his computer is not obeying. “I’m sorry, Dave, I’m afraid I can’t do that,” the computer, named HAL, said matter-of-factly. Puzzled, Dave asked for an explanation, “What’s the problem?” Sounding a little more sinister this ...

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