7.5 Control Schedule
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Purpose & When to Use
- Confirm work is proceeding on time by comparing actuals to the approved schedule baseline.
- Detect slippage early, understand causes, and decide on corrective or preventive actions.
- Forecast key dates and completion, keeping stakeholders informed with reliable schedule information.
- Use throughout the project, especially at reporting cycles, milestones, major deliveries, or when risks or changes affect timing.
Mini Flow (How It’s Done)
- Gather actual progress: starts, finishes, percent complete, remaining duration, and impediments.
- Update the schedule model in the PMIS with the latest actuals and confirmed logic, calendars, and resources.
- Compare to the baseline using variance and trend analysis, critical path review, and metrics such as SV and SPI if using EVM.
- Identify root causes and impacts, focusing on critical and near-critical paths, resource constraints, and external dependencies.
- Forecast new dates by recalculating the network, re-estimating remaining work, and assessing risks to the timeline.
- Select and apply responses: resequence work, adjust resources, fast-track, crash, or implement preventive actions; raise change requests if the baseline must change.
- Communicate updates via schedule reports and dashboards, and update logs, risks, assumptions, and lessons as needed.
Quality & Acceptance Checklist
- Actuals are current, traceable to evidence such as timesheets or system data, and use a consistent data date.
- Critical and near-critical paths are recalculated after each update, with total float reviewed.
- No open-ended activities exist; start and finish constraints and lags are justified and documented.
- Calendars and resource availability are correctly applied to durations and forecasts.
- Progress measurement rules are consistent across activities, including how percent complete is determined.
- Variance thresholds are defined, and actions are triggered when thresholds are exceeded.
- Schedule forecasts and reports match the PMIS output, and stakeholders receive updates appropriate to their needs.
- Baseline changes follow formal change control; no unauthorized rebaselining occurs.
Common Mistakes & Exam Traps
- Rebaselining to hide variance instead of first applying corrective or preventive actions.
- Ignoring near-critical paths that may overtake the critical path after changes.
- Choosing fast-tracking or crashing without analyzing risks, costs, and resource limits.
- Confusing calendar days with working days, leading to incorrect finish forecasts.
- Relying only on percent complete instead of re-estimating remaining duration and recalculating the schedule.
- Applying changes to leads, lags, or constraints without documenting and controlling them.
- Using SPI at project end to judge schedule health when it naturally trends to 1.0; focus on remaining work and path analysis.
PMP Example Question
A project is two weeks behind schedule, but the sponsor wants to keep the original completion date. What should the project manager do first?
- Submit a change request to rebaseline the schedule to the new forecast.
- Add resources to all late activities to recover time.
- Fast-track the entire project by running as many tasks in parallel as possible.
- Analyze the critical and near-critical paths to identify targeted fast-tracking or crashing options and their risks.
Correct Answer: D — Analyze the critical and near-critical paths to identify targeted fast-tracking or crashing options and their risks.
Explanation: Evaluate schedule drivers before choosing a response. Do not rebaseline or add resources broadly without focused analysis and risk assessment.
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