Pursuit: Graphically Representing Programs in a Demonstrational Visual Shell
	Francesmary Modugno and Brad A. Myers



Pursuit is a programmable direct manipulation interface to a file
system that enables users to create programs by demonstration.  To
construct a program in Pursuit, users execute actions on real data and
Pursuit creates a general procedure containing variables, loops and
conditionals.  During the demonstration, the evolving program is
represented in an editable, visual programming language.  Unlike other
visual programming languages, which explicitly represent operations
and leave users to imagine data in their heads, Pursuit's visual
language explicitly represents data objects using icons and implicitly
represents operations by the changes they cause to data icons.  The
language also serves as a novel form of feedback between Pursuit and
the user.

KEYWORDS End-User Programming, Programming by Demonstration, Visual Shell, Visual Language.