Editing Planner (programming language) (section)

{{Short description|Programming language}}
{{more footnotes|date=May 2017}}
{{Infobox programming language
| name = Planner
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| paradigm = [[Programming paradigm#Multi-paradigm|Multi-paradigm]]: [[Logic programming|logic]], [[Procedural programming|procedural]]
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| released = {{Start date and age|1969}}
| designer = [[Carl Hewitt]]
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| implementations = Micro-planner, Pico-Planner, Popler, PICO-PLANNER
| dialects = QA4, Conniver, QLISP, Ether
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| influenced = [[Prolog]], [[Smalltalk]]
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}}
'''Planner''' (often seen in publications as "PLANNER" although it is not an acronym) is a [[programming language]] designed by [[Carl Hewitt]] at [[MIT]], and first published in 1969.  First, subsets such as Micro-Planner and Pico-Planner were implemented, and then essentially the whole language was implemented as ''Popler'' by Julian Davies at the [[University of Edinburgh School of Informatics|University of Edinburgh]] in the [[POP-2]] programming language.<ref>Carl Hewitt Middle History of Logic Programming: Resolution, Planner, Prolog and the Japanese Fifth Generation Project ArXiv 2009. {{ArXiv|0904.3036}}</ref> Derivations such as QA4, Conniver, QLISP and Ether (see [[scientific community metaphor]]) were important tools in [[artificial intelligence]] research in the 1970s, which influenced commercial developments such as [[Knowledge Engineering Environment]] (KEE) and [[Automated Reasoning Tool]] (ART).