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Some experts say there is no such thing as an Iron Triangle in Agile Methodology. Why? Because projects can't be fit into tiny flexible boxes and there are more than three elements to consider when using Agile management. The Agile Triangle has helped to sway these doubters through implementation.
If we take Jim Highsmith's example that utilizes Agile methodology, the first being Motorola's Iridium project that failed in the marketplace and then James Cameron's over cost and schedule movie, Titanic, which one succeeded? Motorola's project was the Agile methodology success because it stayed within the scope, schedule, and cost, even though it failed at the marketplace. Titanic, on the other hand had overruns as high as $200 million but gained $1 billion at the box office; it utilized no Agile methods and even though monetarily it succeeded, it didn't use good agile management techniques. So how can the new Agile Triangle work for your projects?
- Value - Your project's value should be measured by the stakeholders and what they expect.
- Quality - The quality part of the triangle means you can deliver a reliable product by adapting to the customer's needs.
- Constraints - Here, the three elements of the Iron Triangle appear – project scope, schedule, and cost.
So in fact the Agile Triangle, by changing it's elements to include value and quality and keeping the old standards in the constraints part of the triangle can be beneficial, more adaptable, and flexible to teams and the entire project.