Multimodal Usability of Human-Computer Interaction Based on Task-Human-Computer-Centered Design

The cockpit of the aircraft provides the interface between the aircraft sensors and pilot, and enables the pilot to carry out the mission. Attention is concentrated on analyzing of the multimodal thinking about the interaction system's usability. Through comparing the human-centered and computer-centered design thinking in the human-computer interaction systematic design, "human-centered" emphasizes the unsubstitutability of human, but "computer-centered" prerequisite suppose computer can replace human. They all lost sight of the importance of the completing task. It is proposed that in order to improve the system usability, the designing of the multimodal interaction system should based on the task-human-computer centered design, that is consider synthetically human, computer and task in different develop phase.