Programming Languages -- The LOOPS Project (1982-1986)

Bobrow, Daniel; Mittal, Sanjay; Lanning, Stanley; Stefik, Mark

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Abstract:
The LOOPS (Lisp Object-Oriented Language) project was started to support development of expert systems project at PARC. We wanted a language that had many of the features of frame languages, such as objects, annotated values, inheritance, and attached procedures. We drew heavily on Smalltalk-80, which was being developed next door.