Which of the following is used to classify stakeholders based on their assessments of power, urgency, and legitimacy?

The power/interest grid classifies stakeholders using only two dimensions - power and interest - not urgency or legitimacy.

The stakeholder cube is a three-dimensional grid that typically uses power, interest, and attitude (or engagement level), not urgency and legitimacy.

The salience model, described in the PMBOK Guide, classifies stakeholders based on the intersection of three attributes: power (ability to impose their will), urgency (need for immediate attention), and legitimacy (appropriateness of their involvement). This three-attribute model helps prioritize stakeholder engagement by identifying the most salient stakeholders.

Directions of influence describes how stakeholders affect the project directionally (upward, downward, outward, sideward) and is not a classification model based on attributes.