Using the baseline and earned value to measure schedule variance
This graph demonstrates two different ways of measuring schedule variance using the cost baseline and earned value. On the horizontal axis, we can see the time variance between the date we planned to accomplish a certain amount of work and the date we actually accomplished that amount of work. On the vertical axis we can measure the difference between the budgeted value (earned value) of the “work done” to a specified date and the budgeted value of the “work planned” at the same date. This is called the schedule variance (SV).