In the USA, a similar Design Methods Group (DMG) was also established in 1966 by Horst Rittel and others at the University of California, Berkeley. The DMG held a conference at MIT in 1968[33] with a focus on environmental design and planning, and that led to the foundation of the Environmental Design Research Association (EDRA), which held its first conference in 1969. A group interested in design methods and theory in architecture and engineering formed at MIT in the early 1980s, including Donald Schön, who was studying the working practices of architects, engineers and other professionals and developing his theory of reflective practice.[34] In 1984 the National Science Foundation created a Design Theory and Methodology Program to promote methods and process research in engineering design.