AACE-PSP Exam Preparation Material | Planning & Scheduling Professional (PSP) Exam

Explanation:
SDOT, as the project owner or primary stakeholder, benefits most from a master schedule as it provides an overview of progress, resource allocation, and critical path analysis for the entire project.
Contractors (e.g., BILCO) may rely on more detailed schedules specific to their scope rather than the overall master schedule.
Reference: PSP Study Guide, Section 2.4.8 C Management Summary, which explains how master schedules are valuable to owners and stakeholders for overall project oversight.

Explanation:
If the duration of Activity B is reduced to zero, the completion of Activity C is determined solely by its own duration and predecessor relationships.
Without knowing the explicit network logic, it is inferred that reducing Activity B to zero does not affect Activity C’s finish on Day 50, as its relationship with other activities remains intact.
Reference: PSP Study Guide, Section 2.2.4 C Relationships and Calculations, highlights how relationships and durations impact completion dates.

Explanation:
Scenario Overview:
A change order has been approved, adding 33 days for weather delays. This requires updating the schedule to reflect the extended contract duration.
Impact on Scheduling:
The simplest and cleanest way to include the change is to create a new activity that represents the delay (e.g., Activity 1050).
The new activity is linked to Activity 1000 using a start-to-start (SS) relationship. This ensures the delay begins in parallel with the original contract start.
The finish-to-finish (FF) relationship with the final activity ensures that the extended duration impacts the project's overall timeline.
Cross-Verification with PSP Principles:
PSP principles emphasize the importance of maintaining logical integrity and clarity when updating schedules for change orders (Ref: PSP Study Guide, Chapter 2B: Schedule Maintenance/Controlling). This method ensures traceability of the delay without affecting activity logic unnecessarily.

Explanation:
Late Start Formula:
Late Start (LS) is calculated as LF−DurationLF - \text{Duration}LF−Duration. For Activity 11001: LF−25=16Jan2024LF - 25 = 16 Jan 2024LF−25=16Jan2024. Cross-Verification with PSP Guidelines:
This formula aligns with the PSP methodology for backward pass calculations, where late start is directly computed from late finish and duration values (Ref: PSP Study Guide, Chapter 2A: Schedule Analysis).