The risk and uncertainty rises multifold with respect to the size of the project, even when the project is developed according to set methodologies.
There are tools available, which aid for effective project management. A few are described -
Gantt charts was devised by Henry Gantt (1917). It represents project schedule with respect to time periods. It is a horizontal bar chart with bars representing activities and time scheduled for the project activities.
PERT (Program Evaluation & Review Technique) chart is a tool that depicts project as network diagram. It is capable of graphically representing main events of project in both parallel and consecutive way. Events, which occur one after another, show dependency of the later event over the previous one.
Events are shown as numbered nodes. They are connected by labeled arrows depicting sequence of tasks in the project.