Planning - The next stage is planning. The project plan answers the questions of why, what, how, when, who, where, and what/if. For example, the construction company must determine the purpose of the building, what resources they need such as workers, materials and equipment, how they will build it, when each stage will be completed, who will be responsible for each task, where the building will be constructed, and what contingency plans they have in case of unforeseen events.