You may well be familiar with the Iron Triangle of project delivery: time, quality, and cost are closely interlinked and trade off against each other. Any improvement on one of those aspects will put downward pressure on the other two.
“Faster, better, cheaper: you can only pick two” is the pithy version.
And that’s if it’s done well. You can be slow, worse, and expensive.
I like to break it down further to an Iron Quadrilateral of time, quality, scope, and cost. Quality and scope can trade off directly: do less but better, or more but worse. And they both trade off against the others.
Here, for the first time, is a quick sketch of it!Continue reading “The Iron Quadrilateral”