Estimation techniques

Choosing the estimating techniques in particular is a step requiring experience. There are various estimating techniques to help assess the required effort. The steps to create an estimate are described in Estimation Techniques. An estimate for a master test plan can be made on the basis of:

• Ratio figures
• Test object size
• Work Breakdown Structure (WBS)
• Proportionate estimation
• Test point analysis (TPA)

To increase the reliability of the estimate, we strongly recommend using both the organisation’s own experience figures and multiple estimating methods and techniques.