By Touchplan The job site is an orchestra of labor, equipment and material driving towards a predetermined end state. Do things always go as expected? Absolutely not. How much does an hour of delay cost the job and eat into the bottom line? What is the root cause of things inevitably not going as planned? It's simple: somewhere along the line, information was mishandled either by you or someone else on the team. Outlined during pre-construction, the external master schedule is meant to provide a view of the path to completion for a project before the actual work begins. It sets the course for everything from time, sequence, cost, labor management, materials, quality and even health and safety risk points on the job site.