The organizational analysis focuses on the structure and design of the organization and how the organization's systems, capacity and functionality influence outputs. Additional internal and external factors are also accounted for in assessing how to improve efficiency. Undertaking an organizational analysis is helpful in assessing an organization's current well-being and capacity, and deciding on a course of action to improve the organization's long-term sustainability. A restructuring of an Organization may become necessary when either external or internal forces have created a problem or opportunity for improvement in efficiency and effectiveness. When performing an organizational analysis, many details emerge about the functions and capacity of the organization. All of these details can make pinpointing what is efficient and inefficient difficult. Using theoretical organizational models can help sort out the information, and make it easier to draw connections. After working through these theoretical models, the organization's present situation is more adequately addressed, and the trajectory of the organization can be more fully determined.