The various alternative organizational structures are functional structures, divisional structures, self contained group structure, geographic structure and hybrid structure. The functional structures segregate the functions which the organization performs and each function has a functional head that is responsible for a particular function. The functional structures play a very important role when the organization is trying to achieve economies of scale and is trying to develop some in-depth skills.
The divisional structure is an organizational structure which is segregated in groups on the basis of product, services, geography or markets. This is good for the organization which is working on different products simultaneously. The self contained product organizational structure is an organizational structure in which the segregation is done on the basis of various products which the company makes. Each product group would have its own teams which would comprise of research and development, manufacturing, accounting, human resource, marketing etc. Another alternative organizational structure is the geographic structure in which the organization is segregated on the basis of the region. It can be east region, south region, west or east region. Each region would have a regional office and the regional offices control the local markets.
Apart from the mentioned structures, sometimes the organizations introduce new structures which according to the organization would serve the organization the best. Thus there are not set organization structure, rather companies decide the hierarchy on the basis of product, or a service or geography. Thus one can easily see that the organization structure of the companies differ from one company to other depending on the product or the services which they would offer.