Report 80 28 UNIT Package User Guide . Stanford Reid G. Smith Peter E. Friedland Mark J. 4

The UNIT Package Is a frame-structured, hierarchically-organized knowledge representation and acquisition system. It was originally developed for the MOLGEN project at Stanford University [Stefik, 19701 [Friedland, 19791 [Stet ik, 19801 Tho package contains a sot of data structures and access functions for program manipulation of those structures. In addition, it contains a sophisticated Interactive editor, called UE. This editor enables a domain export (not necessarily a computer specialist) to construct a knowledge baso through direct interaction with tho computer; that is, tho transfer of expertise from domain export to machine flood not be mediated by a computer specialist. This document is intended to servo several purposes and parts of It can be Ignored by some readers.