An educational development team, working at the Center for the Study of Evaluation to produce the Elementary School Formative Evaluation Kit, saw that its mission was not simply to show that a product meets pre-determined performance specifications but was also to ensure that a product can be readily adapted by the user to the "noisy" conditions under which it ultimately will be used. People are likely to accept an innovation if it is consistent with their professional norms, levels of expertise, and day-to-day responsibilities. It is, therefore, the developer's function to devise a technology for solving a given problem that takes into account the "intentions and behaviors of the target audience." (Author/WM)