Which one of the following is not considered one of the three components of the Iron Triangle?

Time is one of the three defined corners of the Iron Triangle, representing the schedule constraint and deadline requirements.

Cost is one of the three defined corners of the Iron Triangle, representing the budget and resource expenditure constraint.

Scope is one of the three defined corners of the Iron Triangle, representing the work to be performed and the deliverables to be produced.

Quality is not a component of the Iron Triangle; it is instead an outcome or result that is influenced by how well the three triangle constraints are managed. The Iron Triangle represents the three core project constraints - Time, Cost, and Scope - that must be balanced, and changing one typically affects the others.