AACE International Updated PSP Exam Questions and Answers by fiadh

 Understanding Schedule Performance Index (SPI):

SPI is calculated as SPI=BCWPBCWS\text{SPI} = \frac{\text{BCWP}}{\text{BCWS}}SPI=BCWSBCWP​, where BCWP is the budgeted cost of work performed, and BCWS is the budgeted cost of work scheduled.

SPI < 1 indicates that the project is progressing slower than planned, meaning it is behind schedule.

 Evaluation of Other Options:

A: SPI > 1 would indicate the project is ahead of schedule.

B: SPI = 1 implies the project is on schedule.

C: Completion is not relevant to SPI.

 Verification with PSP Guidelines:

PSP emphasizes SPI as a key metric in earned value management (Ref: PSP Study Guide, Chapter 1D: Earned Value Analysis).

Total float measures the flexibility in an activity’s timing within a schedule. It is defined as the amount of time an activity can be delayed without affecting the project’s overall completion date or the completion date of any of its successors.

Option A, B, and D accurately describe total float: it is calculated as the difference between early and late start/finish dates, can be positive or negative, and is associated with project completion​.

Option C describes free float, not total float, and thus is incorrect.

 Situation Analysis:

A 5-day delay in product release impacts the printing window.

The printer is further delayed by 10 workdays.

 Total Delay Impact Calculation:

The combined impact of the testing and printing delays = 5 + 10 = 15 days.

This results in a cumulative delay in product release.

 Cross-Verification:

Option B: Incorrect. Ignores delays entirely.

Option C: Incorrect. Assumes only one source of delay.

Option D: Incorrect. Underestimates delay impact.

Option A: Correct. Matches the calculated total delay.