This document discusses different types of organizational structures. It begins by defining organizational structure and its purpose of ensuring resources are used effectively. It then outlines traditional structures like simple, functional, and divisional structures, providing their advantages and disadvantages. The document also discusses the matrix structure that combines product groups and geographical units. It notes international operations influence the structure a firm adopts based on strategy, product diversity, and foreign sales dependence. Finally, it introduces boundaryless organizational designs that replace traditional structures, listing barrier-free, modular, and virtual organizations.