 Since 2010, the International Association of Facilitators (IAF) has measured the significance of facilitated workshops, a la JAD, and found significant value.Joint application is a term originally used to describe a software development process pioneered and successfully deployed during the mid-1970s by the New York Telephone Company's Systems Development Center under the direction of Dan Gielan.Following a series of remarkably successful implementations of this methodology, Gielan lectured extensively in various forums on the methodology, its benefits and best practices.