Estimates are diligent determinations of Future Costs. Any prediction of the future is full of dangers - assumptions or scenarios form hidden backbones of any estimate. For reasonable prediction of the future an understanding of the behavior of a number of present indicators of likely future costs is essential. To control the accuracy of our estimates an analysis and monitoring of these indicators can assist us develop Early Warning Systems - so appropriate decisions can be taken before it is too late. Organizations need to incorporate their strategic objectives into the estimating process? this will ensure estimating and project management is aligned to the long term objectives of the organization.