This discussion of formative evaluation as part of the instructional design process focuses on developmental testing and expert review. A review of the literature helps define each approach, research on formative evaluation is reviewed, and 37 references are provided. (LRW)

Describes a project at Bell Laboratories which sought a compromise between ideal formative evaluation procedures and more feasible procedures necessitated by restrictions on time and resources. Local-trial and field-trial stages of a phased approach are discussed, as well as the benefits of field-tests. (EAO)