;;; ~/my-domains/jobsite2/domain.lisp
;;;
;;; AUTHOR : Bruce LeSourd
;;;          c473ak
;;;
;;; DATE   : 5/12/91
;;;
;;; PROJECT - domain description

CONSTRUCTION JOB-SITE PLANNER - VERSION 2

	This version attempts to implement a sort of "backward
chaining state", where the "scheduled-from" predicate prevents
scheduling conflicts.  This approach is intended to circumvent
the massive search incurred when Prodigy must reschedule operations
to later times while attempting to satisfy preconditions.

	Because of some basic bugs in this domain, this approach
has not yet been thoroughly tested.


