The Project Management Encyclopedia · 20 master sections · 986+ topics
Start with the fundamentals
The most-searched topics in project management, explained clearly.
Project Management
Project management is the discipline of turning a temporary, one-off effort into a predictable outcome — on scope, on time and on budget — by planning the work and then actively steering it to completion.
Work Breakdown Structure
A work breakdown structure (WBS) is a deliverable-oriented decomposition of a project into smaller, manageable pieces — the single most important planning tool because everything else (schedule, budget, responsibilities) hangs off it.
Critical Path Method
The critical path method (CPM) finds the longest chain of dependent activities through a project — the sequence that determines the shortest possible finish date, and the tasks where any delay delays the whole project.
Earned Value Management
Earned Value Management (EVM) integrates scope, schedule and cost into a single set of numbers that answer the two questions every sponsor asks: are we over budget, and are we behind schedule — right now, not at the end.
Agile
Agile is an iterative, adaptive approach to delivering work in small increments with continuous feedback — valuing working outcomes, collaboration and responding to change over rigid up-front plans.
Scrum
Scrum is the most widely used Agile framework — a small cross-functional team delivers work in fixed-length sprints, guided by three roles, three artefacts and a rhythm of five events.
Risk Register
A risk register is the living log of everything that might go wrong (or right) on a project — each risk scored, owned, and paired with a response — so uncertainty is managed deliberately instead of discovered too late.
RACI Matrix
A RACI matrix maps every task or decision to four roles — Responsible, Accountable, Consulted, Informed — so there is never confusion about who does the work, who owns the outcome, and who needs to be looped in.
Gantt Chart
A Gantt chart is a horizontal bar chart of a project schedule — each task a bar positioned by its start and end date — that makes timelines, overlaps and dependencies instantly readable.
Free calculators
Run the numbers instantly — no sign-up.
Earned Value (EVM) Calculator
Compute CV, SV, CPI, SPI, EAC, ETC, VAC and TCPI from BAC, PV, EV and AC in one go.
CPI Calculator
Cost Performance Index — are you getting a dollar of value for every dollar spent?
SPI Calculator
Schedule Performance Index — how much of the planned work is actually done?
Cost Variance Calculator
How far over or under budget the completed work is, in money and percent.
Schedule Variance Calculator
How far ahead or behind schedule you are, expressed in budgeted cost of work.
EAC Calculator
Estimate at Completion by four standard methods — pick the one that matches your situation.
Everything else
Beyond the encyclopedia — ready-made playbooks, tools, templates and buying guides.
Playbooks
95 project types × 34 deliverables.
Software
89 tools reviewed & compared.
Best-Of Guides
Best software for every use case.
Comparisons
447 head-to-head breakdowns.
Templates
Charters, plans, registers and reports.
How-to Guides
63 step-by-step guides.
Examples
Projects by industry.
A–Z Glossary
Every term, alphabetically.