The notes may even describe the way you test the energy of the construction. Erection drawings present the position of members in the ultimate structure, and usually detail their weights. If the architect possesses written dimensions for the plan, use these instead of measuring the size with a ruler. Navy blueprint reading and sketching course, paper will stretch or shrink over time, which can make dimensions bigger or smaller than you intended. The priority network drives scheduling with a method referred to as the critical path methodology . The CPM establishes the early and late start and finish dates for tasks — that is, when you can start and end them so as to complete the project on time.