
342 Chapter Sixteen Demonstrating "When" as well as "What"
16.6
The Parlor Editor showing an animation path triggered by a button click. In this ex-
ample, the current stimulus is a LEFTCLICK on RectO. The displayed response is an
animation path (a series of moves) involving EllipseO.
Because there is a time line for each stimulus, and because operations,
not object states, are recorded, the designer can specify interfaces in which
objects behave asynchronously. Chapter 17 of this book provides more
details.
It should be noted that Pavlov's stimulus-response score not only is used
to view and edit behaviors after the fact ...