Knowing an organizational structure is the first step in learning business vocabulary. Moreover, when you take up a job in an organization, you need to know the organizational structure for various reasons:
1. To know how the company functions.
2. To find out to whom you need to report whenever you indulge in business transactions.
3. To see who are the board of directors of the company.
To know more about it read the following definition given by BusinessDictionary.com (nd)

organizational structure

Definition

The framework, typically hierarchical, within which an organization arranges its lines of authority and communications, and allocates rights and duties. Organizational structure determines the manner and extent to which roles, power, and responsibilities are delegated, controlled, and coordinated, and how information flows between levels of management.
An structure depends entirely on the organization's objectives and the strategy chosen to achieve them. In a centralized structure, the decision making power is concentrated in the top layer of the management and tight control is exercised over departments and divisions. In a decentralized structure, the decision making power is distributed and the departments and divisions have varying degrees of autonomy. An organizational chart illustrates the organizational structure.

View the chart below to understand the basic structure

 1.structure of an organization:

 2. Structure followed within an Office.

Hope you have understood the organizational structure. In the next postings you will learn more about this in detail clearly.