Difference between matrix management and function management?

From the perspective of structure, organizations fall into three categories:

1. Functional organizations

2. Projectized organizations and

3. Matrix organizations.

Functional Organizations

A functional organization has a traditional organizational structure in which each functional department, such as engineering, marketing, and sales, is a separate entity

Projectized Organization

A projectized organization's structure is organized around projects. Most of the organization's resources are devoted to the projects

Matrix Organization

A matrix organization is organized into functional departments, but a project is run by a project team, with members coming from different functional departments

The matrix organizations are generally categorized into a strong matrix, which is closer to projectized structure; a weak matrix, which is closer to functional structure; and a balanced matrix, which is in the middle of strong and weak.