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id thinglab
name ThingLab
appeared 1979
tags pl

wikipedia https://en.wikipedia.org/wiki/ThingLab
 related smalltalk
 summary ThingLab is a visual programming environment implemented in Smalltalk and designed at Xerox PARC by Alan Borning. A conventional system allows a user to provide inputs that produce outputs.  A constraint-oriented system, such as ThingLab, allows the user to provide arbitrary inputs or outputs, then solves for whatever is unknown. ThingLab is viewed as one of the earliest constraint-oriented systems.ThingLab is credited in "Fumbling the Future" as a big reason Xerox continued to fund computer development.
 created 2006
 backlinksCount 3
 pageId 4288444
 revisionCount 19
 dailyPageViews 3
 appeared 1978

hopl https://hopl.info/showlanguage.prx?exp=980