Prince2 7 Principles [ LATEST — 2026 ]

Follow David as he navigates the project using the 7 principles. Each principle is highlighted and explained within the story. The Story: Before David writes a single line of code, he asks Maria one question: "Why are we doing this?"

Define each deliverable in detail before you build it. Quality is built in from the start, not inspected in at the end. 7. Tailor to Suit the Project Environment (No Silver Bullet) The Story: David reads the official PRINCE2 manual. It says to create 26 different documents. For a 6-month, 8-person project, that is overkill.

The principles had worked. Summary Table of the 7 Principles in the Story | Principle | In Story | Key Takeaway | |-----------|----------|----------------| | 1. Continued Business Justification | David updated the Business Case when competitor launched & new tech emerged. | Always ask: Is this still worth doing? | | 2. Learn from Experience | Read Lessons Log from past failed IT project; called Chloe. | Capture and apply lessons from day one. | | 3. Define Roles & Responsibilities | Sarah changed database; David posted RACI chart. | No role ambiguity = no finger-pointing. | | 4. Manage by Stages | Planned in 4 stages; reviewed after each before continuing. | Plan, execute, then re-evaluate at fixed points. | | 5. Manage by Exception | Cost exceeded tolerance; David escalated to Maria for decision. | Senior management sets limits; PM works within them. | | 6. Focus on Products | Used Product Description for Shopping Cart before coding. | Define what you deliver, not just what you do. | | 7. Tailor to Suit | Dropped 26 documents to 1 spreadsheet + stand-ups. | Fit the method to the project, not vice versa. |

Look back before you leap. Capture lessons from past projects (good and bad) and apply them continuously, not just at the end. 3. Define Roles and Responsibilities (Who Does What?) The Story: In week two, chaos erupts. A developer, Sarah, changes the database structure without telling anyone. The tester, Mike, is furious because his tests now fail. Sarah says, "I thought I was helping." prince2 7 principles

The auditor later commends David: "You followed the spirit of PRINCE2, not just the paperwork."

However, he keeps the and Product Descriptions formal because those are critical for a high-risk project.

"How did you avoid all the disasters of our last project?" Follow David as he navigates the project using

Three months in, a competitor launches a similar platform. David re-runs the numbers. The original $2M benefit is now only $800k. The project still makes sense, but just barely. He updates the Business Case. At month five, a new technology emerges that would cost an extra $50k but double the speed. David presents this to the board. They agree the extra benefit justifies the cost. The Business Case remains viable until the very end. If it ever became un justified, David would be mandated to stop immediately.

Use PRINCE2 as a toolkit, not a straitjacket. A small website project does not need the same controls as a nuclear power plant. Adjust the method to fit the project size, risk, and team culture. The Ending Six months later, the new platform goes live. It is stable, fast, and within budget. Maria calls David into her office.

Maria nods. "Roll this out to all our project managers next quarter." Quality is built in from the start, not

Maria chooses option 2. David continues. Maria only hears about problems when tolerances are breached. She is not bothered with daily status updates. She manages the project by exception .

Maria shows him the data: $500k in lost sales last month due to site crashes. David creates a —a living document showing the project will cost $300k but deliver $2M in benefits over two years.

Senior management sets boundaries (time, cost, quality, scope). The project manager stays within them. Only break the glass when a boundary is crossed. 6. Focus on Products (Outputs, Not Activities) The Story: Most teams focus on tasks: "Write code," "Test login," "Deploy server." David forces the team to focus on products (deliverables).