Parametric Estimate
The parametric estimate, which was described previously, uses specific measures to estimate the effort required to complete a task or to produce a work product. Examples are dollars per square foot, hours per lines of code, dollars per gallon, and dollars per function point.
The estimating unit (EU) is the unit defined by the team that can be measured and estimated. The EU can apply to more than one task, but these tasks should be similar. Different factors can affect the task and can increase or decrease the effort and therefore, the EU. Too many EUs can result in a method that estimates individual items rather than a large group of similar items. Examples of estimating units are lines of code, pages in a chapter, or number of lessons in a class.
Estimation Methods
Click each button to read a
description of that term.