“…The framework prototype, at one point or another during its lifetime, ran on three different operating system/LISP implementations (VAXLISP on VMS, Symbolics, and Allegro CL on Unix) each through several major upgrades. The framework uses as components the LogLisp Programming System [4], and PCL (a portable CLOS implementation), various miscellaneous tools (browsers, communication packages, etc.). In addition, KUIE is based on the Common Lisp interface to X windows (CLX), and Texas Instruments' Common Lisp User-interface Environment (CLUE).…”