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PRISM (Program for Research Into Self-Modifying Systems)

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Description

A production-system interpreter developed by Pat Langley and Neches that augments LISP and lets users select among alternative architectural mechanisms and control options.

Components

  • PRISM: a production-system interpreter offering user-selectable options at key architecture choice points: PRISM (Program for Research Into Self-Modifying Systems), developed by Pat Langley and the author, is a production-system interpreter implemented by augmenting LISP, owing a major debt to Forgy's OPS4. Its design philosophy is that "thereare too many. Unresolvedquestionsabout the detailsofhow a production system. should work," so instead of fixing one architecture it identifies key choice points, offers plausible options, and lets sophisticated users implement alternatives. It expands the traditional data-memory/production-memory recognize-act cycle with user-controlled options such as three spreading-activation schemes (spread-to-depth, spread-to-limit, and directed activation) and split me (Neches (1982))

Claims

Key Sources

  • Neches, Robert. (1982). Simulation Systems for Cognitive Psychology. Learning Research and Development Center, University of Pittsburgh. https://eric.ed.gov/?id=ED217874
Page metadata
Field Value
type product
id prism-program-for-research-into-self-modifying-systems
title PRISM (Program for Research Into Self-Modifying Systems)
description A production-system interpreter developed by Pat Langley and Neches that augments LISP and lets users select among alternative architectural mechanisms and control options.
status review
moved_from element/prism-production-system-interpreter
product_kind software
generated by process:sweep-kinds on 2026-10-10
trust unverified — no one has confirmed this page's content
sources 1 — neches-1982

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