Evaluation on influence factor of mechanism usability based on analytical prey incidence process

Action needs, cognitive needs and learning needs, which reflected mechanism usability, were selected as characteristic variables of system. Universality, stability and full-function were selected as factor variables. Absolute degree of incidence matrixes for system characteristic variables and factor variables were established. Influences of property parameters on mechanism usability were determined according to the superior analytical principle. Example suggests that analytical prey incidence process can be a reasonable and available method to determine the influence degree of property parameters on mechanism usability.