Planner (programming Language)
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 in Popler. 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 KEE and ART.
Read more about Planner (programming Language): Procedural Approach Versus Logical Approach, Procedural Embedding of Knowledge, Micro-planner Implementation, Control Structure Controversy, Hairy Control Structure, Control Structures Are Patterns of Passing Messages, The Genesis of Prolog