"Although the JAD design is widely acclaimed, little is actually known about its effectiveness in practice." According to the "Journal of Systems and Software", a field study was done at three organizations using JAD practices to determine how JAD influenced system development outcomes. The results of the study suggest that organizations realized modest improvement in systems development outcomes by using the JAD method. JAD use was most effective in small, clearly focused projects and less effective in large complex projects. Since 2010, the International Association of Facilitators (IAF) has measured the significance of facilitated workshops, a la JAD, and found significant value.