What is the s-Curve in a project ?

The S Curve is a well known project management tool and it consists in “a display of cumulative costs, labour hours or other quantities plotted against time”.The name derives from the S-like shape of the curve, flatter at the beginning and end and steeper in the middle, because this is the way most of the projects look like.

The S curve can be considered as an indicator and it’s used for many applications related to project management such as: target, baseline, cost, time etc. That’s why there is a variety of S Curves such as:
-Cost versus Time S Curve;(appropriate for projects that contain labour and non-labour tasks).