ABSTRACT

After the nine steps in the usability assessment are completed (Table 3), the results are used to reassess the product design, and the process is started again, in a consequent stage of the development process (product development, laboratory testing, field testing). Although usability testing is most

TABLE 3 Components of Usability Testing (Rice 1999)

To be most effective, both in terms of ensuring a quality product and keeping costs low, usability testing should be incorporated throughout the design process. The process

effective when conducted in an iterative fashion throughout the design process, other procedures are used. For example, instead of repeating the entire nine steps, one or two steps may be repeated, if the desired changes so warrant.