A process chart graphically diagrams the sequence of operations involved in a process through the use of standard symbols. It provides an overall view of the situation and records what workers, materials, and equipment do at each step. Key elements included on a process chart are operations, inspections, transportation, and delays, with operations representing a change in the physical or chemical characteristics of an object. Process charts can be of different types, including man, material, and equipment types, to focus on worker activities, material flow, or equipment use.