Project management: the complete guide
From planning to closure, everything you need to run a project with rigour. And why most projects fail not at the planning stage, but in execution.
What is project management?
Project management is the set of methods, processes and tools used to plan, organise, deliver and control a project so that it meets defined objectives, on time and on budget.
A project differs from day-to-day activity in three ways: it has a start and an end, it produces a unique deliverable, and it draws on dedicated resources (people, money, equipment).
Project management answers one fundamental question: how do you make sure that what was decided actually gets done, on time and within budget?
The three core constraints
Every project is shaped by the triple constraint:
- Scope: what the project must produce (the deliverables)
- Time: the date by which the deliverables must be ready
- Budget: the resources available to get there
The three are linked: change one and the other two are affected. The project manager's job is to keep making those trade-offs.
Why project management matters
Many projects miss their original targets on time, budget or scope. The main causes are rarely technical; they are organisational: poor visibility of progress, actions nobody follows up, decisions nobody records, unclear responsibilities.
Rigorous project management reduces those risks by giving the whole team a shared structure to follow.
The 5 phases of a project
Whatever the sector or the method, every project goes through the same main phases. Knowing them helps you anticipate the risks that come with each one. Our guide to the 7 steps to effective project management goes through them in detail.
Initiation
Framing the project: setting SMART objectives, checking feasibility, identifying stakeholders, appointing the project manager. Without solid framing, everything that follows will be approximate.
Planning
Breaking the work into tasks, assigning responsibilities (with a RACI matrix), building the schedule (Gantt, PERT), estimating resources and risks. Planning produces the project plan, the central reference for the whole project.
Execution
Delivering the plan: teams carry out the tasks while the project manager coordinates, arbitrates and communicates. This is the longest phase and the riskiest. It is where most projects drift, for lack of rigorous action tracking.
Monitoring and control
Measuring actual progress against the plan, managing variances, holding steering meetings, updating the project plan. Monitoring runs alongside execution, not after it. A project nobody steers drifts quietly.
Closure
Signing off deliverables, reviewing the project, capturing lessons learned, archiving. Closure is often skipped, yet it is what makes the next project better.
The main project management methods
There is no one-size-fits-all method. The right choice depends on the nature of the project, how much uncertainty there is, the size of the team and the sector.
Waterfall
A linear, sequential approach: each phase is signed off before the next begins. Best for projects with a fixed, well-defined scope (construction, manufacturing, compliance).
Agile
Work is split into short iterations (two-week sprints) with frequent delivery, continuous feedback and constant adjustment. Widely used in software development and high-uncertainty projects.
Kanban
Work is shown on a board with columns (To do, In progress, Done). Ideal for teams with a continuous flow of work, and good at exposing bottlenecks.
PRINCE2
A structured method built on 7 principles, 7 themes and 7 processes. A standard in the public sector and large organisations, with strong governance, rigorous documentation and clearly defined roles.
PERT / critical path
Maps the dependencies between tasks to find the critical path, the sequence that sets the shortest possible project duration. Used on complex projects.
Hybrid approach
Combines the structure of predictive methods (governance, overall planning) with the flexibility of agile ones. Increasingly common in large organisations.
Project management tools
Tools fall into several categories according to what they mainly do. What organisations most often lack is a tool dedicated to tracking actions between meetings: the link between what is decided and what is delivered.
Planning
Gantt, PERT, WBS. MS Project, GanttPro.
Task management
Kanban, to-do lists. Trello, Asana, Monday.
Collaboration
Team communication. Teams, Slack, Google Workspace.
Reporting
Dashboards, KPIs. Power BI, Looker Studio.
Meetings
Automatic minutes. Outlook, Teams plus Perfony AI.
Action tracking
Follow-up through to closure. Perfony, built for execution.
Why well-planned projects still fail
Planning tools are mature. Gantt, PERT, Agile, Scrum: the methods have been around for decades. And yet many projects still overrun their schedule or budget.
The main cause is not planning, it is execution. More precisely, the lack of rigorous action tracking between two steering meetings.
What happens on most projects:
- Actions are agreed in the meeting
- They are written into minutes nobody reads again
- At the next meeting, nobody remembers exactly who was meant to do what
- The same actions are agreed all over again, only later
Perfony: from action plan to results
Perfony fills the gap between planning and execution. Every meeting decision automatically becomes an action with an owner, a due date and a priority, visible to the whole team and tracked until it is closed.
Automatic minutes from Teams
The meeting is transcribed in real time. The minutes are ready in 3 minutes, with decisions and actions extracted automatically.
Actions in the project plan
Every action from the minutes goes straight into the project folder, with the owner and due date already filled in.
Real-time dashboard
A consolidated view of progress on every action, delays and risks, available at any time without an extra meeting.
Multi-project tracking
For organisations running several projects at once, Perfony gives a cross-cutting view of the whole portfolio.
5 classic project management mistakes
Poorly defined objectives from the start
A project without SMART objectives cannot be steered. Everyone works to their own interpretation, and the result never matches what was expected.
Unclear responsibilities
"The team will handle it" names nobody. Without an explicit RACI matrix, tasks fall through the cracks and turf wars bring the project to a halt.
Planning without following up
A project plan drawn up at kick-off and never updated is no longer a management tool, it is an archived document. Tracking actual progress against the plan is non-negotiable.
Underestimating risks
If you do not identify foreseeable risks up front, you end up firefighting crises you could have anticipated. Even a basic risk register makes a huge difference to how fast you can react.
Meetings with no action follow-up
Meetings that do not produce clear actions with an owner and a due date create the illusion that the project is moving, while nothing changes from one meeting to the next.
Frequently asked questions
Go deeper
All our articles and resources on project management, methods and operational steering.
7 steps to effective project management
A step-by-step method, from initiation to closure
Project management software compared
The leading solutions on the market, and Perfony
Why invest in a project management tool?
The concrete benefits for your teams
The benefits of team-based task management
Sharing out and tracking work as a team
Following up your steering committee
An action plan example after a SteerCo
Action plan management: best practices
How to structure and track your action plans
Meeting minutes: the complete guide
Automatic AI minutes from your project meetings
RACI matrix: the complete guide
Making responsibilities clear in your projects
Prioritisation in task management
Priorities and workload in projects
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