One of the reports you are asked to One of the reports you are asked to produce is an S-curve diagram. Through your experience, you know that S-curve data is based on earned value. Therefore, you must __________ at the start of the project in order to have accurate S-curve reports.produce is an S-curve diagram. Through your experience, you know that S-curve data is based on earned value. Therefore, you must __________ at the start of the project in order to have accurate S-curve reports