ABSTRACT: Many construction processes include installation of unique materials in specific locations in the
facility being built: materials and locations must match before installation can take place. Mismatches due to
delay and uncertainty in supplying materials or completing prerequisite work at those locations hamper field
productivity. This is illustrated here using a model of a materials-management process with a matching problem
that typifies fast-track process-plant projects. The uniqueness of materials and locations combined with the
unpredictability in duration and variation in execution quality of various steps in the supply chain allow for
different ways to sequence material delivery and work area completion.