Wheelchair Riders in Control WWI's Model of Technology Transfer by Peter Pfaelzer, Ph.D. and Marc Krizack, J.D. This article describes Whirlwind’s design methodology from its beginnings in 1980 until 2005, when Whirlwind focused on small shop manufacturing. Today we call this design methodology “User- Originated.” Although Whirlwind now designs for larger scale … [Read more...] about Wheelchair Riders in Control