thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Project Management & Agile · Foundational

Triple Constraint

The classic model that scope, time, and cost are interdependent, with quality affected by all three.

Definition

Changing one constraint affects at least one other. Modern guidance expands this to competing constraints including quality, resources, risk, and customer satisfaction.

Example

Adding features (scope) requires more time or money unless quality is compromised.

Exam tip

Agile inverts the triangle: time and cost are fixed while scope varies.

Related terms