Final answer:
A dual hierarchy is the salient feature of a Matrix structure. It combines aspects of functional and project structures, with employees reporting to both a functional manager and a project manager.
Step-by-step explanation:
A dual hierarchy is the salient feature of a Matrix structure.
A matrix structure is an organizational structure that combines aspects of functional and project structures. It is characterized by dual reporting lines, where employees report to both a functional manager and a project manager.
For example, in a matrix structure, an employee in the marketing department might be assigned to work on a project with employees from the product development department. The employee would report to both their marketing manager and the project manager overseeing the project.