PMI-SP Exam Dumps : PMI Scheduling Professional

The schedule performance index can be found by dividing the earned value by the planned value. In this instance, it is $180,000 / $247,500 for a value of .73. Schedule performance index (SPI) is the measure of schedule efficiency on a project. It is used in trend analysis to predict future performance. SPI is the ratio of earned value to planned value. The SPI is calculated based on the following formula: SPI = Earned Value (EV) / Planned Value (PV) If the SPI value is greater than 1, it indicates better than expected performance, whereas if the value is less than 1, it shows poor performance. The SPI value of 1 indicates that the project is right on target.

Answer option D is incorrect. This is the schedule variance formula of EV-PV.

Answer option A is incorrect. This is the TCPI formula of 1.04.

Answer option B is incorrect. This is the VAC formula with a result of -$27,500.

The critical path is the path in the project network diagram with the longest duration. In project management, a critical path is the sequence of project network activities which add up to the longest overall duration. This determines the shortest time possible to complete the project. Any delay of an activity on the critical path directly impacts the planned project completion date (i.e. there is no float on the critical path). In this instance path ACGIJ is the longest as it takes 23 days.

Answer options C and D are incorrect. These paths take 13 days.

Answer option A is incorrect. This path only takes 19 days.

The main function of the schedule model is to provide a useful 'road map' that can be used by the project manager and the project team to assist them in completing the project fruitfully. A well-developed schedule model is an active tool used to predict at what time the project work that remains to be completed can reasonably be completed. The schedule model allows the project team to look at the performance of the project to date, and use that data to make more accurate projections about the future.