Goals, Strategy, Example & Steps to Achieve Lean System

Goals of Lean

• Improved quality
• Eliminate waste
• Reduce time
• Reduce total cost

Four different notion of Lean have been identified

1. Lean as a fixed state or goal (being lean) 
2. Lean is a continuous change process (becoming lean) 
3. Lean as a set of tools or methods (doing lean/toolbox lean) 
4. Lean is a philosophy (lean thinking)

Structured estimating

Structured estimating

The basis of past experience to predict future events

• Accuracy of estimating depends on the experience of the estimator
• Cheap to apply
• Can be used to predict times for work which has not been observed
• Can be used as a basis for price estimating

Normally used where the required time values are not required in great detail.