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 ...

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