How does a strong matrix differ from a weak one?

A strong matrix and a weak matrix are terms often used in the context of organizational project management structures.

Strong matrix is characterized by the project manager having greater authority and control over resources and decision-making. In such a structure, the project manager has their own team, budget, and powers, similar to a functional manager.

Weak matrix, on the other hand, is closer to a functional structure, where the project manager acts as a coordinator or consultant, and key decisions and resource management remain with functional managers. In this structure, the project manager has limited authority and control.

Thus, the main difference lies in the level of authority and control the project manager has over resources and processes.