Build a credible plan, maintain the schedule and measure performance
Project planning converts objectives and scope into an integrated approach for delivery. Scheduling then models activities, logic, durations, milestones and constraints so the team can understand when work should happen and what threatens completion.
Planning is broader than a programme
A useful project plan integrates scope, schedule, finance, resources, stakeholders, risk, procurement and governance. The level of detail should be tailored to the project rather than applied mechanically.
Schedule development
1. Define deliverables and work
Start from outcomes and accepted scope. A work breakdown structure can organize deliverables into manageable work packages and reduce the chance of missing required work.
2. Define and sequence activities
Identify the activities needed to create each deliverable, then establish logical dependencies. Avoid arbitrary dates where a dependency can express the real relationship.
3. Estimate resources and duration
Consider quantities, productivity, calendars, crew size, availability, constraints and uncertainty. Duration is not simply effort divided by people when access, curing, approvals, interfaces or fixed processes govern the work.
4. Develop and analyze the schedule
Calculate dates using the network logic, review the critical path and near-critical work, check float, resource feasibility, milestones and contractual constraints, and challenge unrealistic assumptions before approval.
5. Establish the schedule baseline
Once approved, preserve the baseline as the reference for performance measurement. Changes should follow agreed change control rather than silently rewriting history.
Monitoring and forecasting
Update actual starts/finishes, remaining duration and progress using a consistent status date. Compare current forecast with baseline, investigate variance, review critical/near-critical paths and agree recovery actions where required.
Earned Value Management
Budgeted value of work planned by the status date.
Budgeted value of work actually accomplished.
Actual cost incurred for performed work.
Schedule performance index EV/PV and cost performance index EV/AC.
EVM is most useful when scope, baseline, progress rules and cost capture are aligned. Indices are indicators for investigation—not substitutes for schedule logic, forecasting or management judgment.
Current PMI context
This guide is aligned at a high level with the PMBOK® Guide – Eighth Edition structure, which emphasizes value delivery, tailoring and seven performance domains including scope, schedule, finance, stakeholders, resources, risk and governance. It is an independent educational summary, not a reproduction of PMI material.
Practical planning checklist
- Is scope sufficiently defined for the planning horizon?
- Does every major deliverable have accountable ownership?
- Are dependencies logical and calendars realistic?
- Are procurement and approval lead times included?
- Is the critical path credible?
- Are baseline changes controlled?
- Are progress rules objective and consistently applied?
- Does the forecast reflect current knowledge rather than the original hope?
See these workflows applied in a project-focused business system.
