Researchers in construction have begun to realize that
construction management must include production control
systems (e.g., Bernold and Salim 1993, Melles and Wamelink
1993) to complement the project management systems currently
in use. Control systems must include not only activities being
performed at the project site but also those that make up the
entire supply chain (O'Brien 1995). The work described here
belongs to this school of thought.