5. Organization of heavy work

Level 4 or 5 jobs (§ 1.4 ), such as major overhauls of complete units, require special organization. Task networks are often used. The job is broken down into elementary tasks of known duration, and a chronological relationship is established between the tasks. These are then arranged in a network where the earliest and latest times are shown for each task, thus determining a critical path, or sequence of operations for which there is no available...