There Are Several Conventions Used to Aid in Estimating Percent

Short Answer

There are several conventions used to aid in estimating percent completion.Match each rule with its description.
A)50-50 rule
B)0-100 percent rule
C)Critical input use
D)Proportionality
1)This commonly used rule is also based on percentages,but uses time (or cost)as the critical input.
2)This rule assigns task progress according to the amount of an important input that has been used.
3)This rule allows no credit for work until the task is complete.
4)Fifty percent completion is assumed when the task is begun,and the remaining 50 percent when the work is complete.