Project Management that Works: Real-World Advice on Communicating, Problem Solving, and Everything Else You Need to Know to Get the Job Done

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he iron triangle is a metaphor for the interdependence of the differ-

ent variables that work together and compete with each other to

create a project. The iron triangle once stood for three core items:

cost, schedule, and quality; however, it has now evolved into a number of

different configurations. These configurations were designed to set and

measure the expectations of a project. Originally, it was used as a measure

of project success. Time has shown that the iron triangle is an inadequate

way to measure success. To be truly functional, it should be used for set-

ting project expectations but not as a definitive measure of success. The

triangle ...