Alan Cooper, an advocate of interaction design, runs a design company and writes books about how to make software user interfaces more usable.
Cooper is sometimes called "the father of Visual Basic", although much of work on Visual Basic was done by Microsoft's internal development group. Cooper was the leading force behind VB 1.0 and pioneered the use of an IDE to create a GUI via wrapped calls to system routines in the API (see Adapter pattern).
Cooper's original programs were called "Tripod" and later "Ruby". They were intended as more of an end-user tool, but development at Microsoft led to Visual Basic becoming a tool for programmers instead.