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Unit 2: Information Systems in the Enterprise

2.3 Functional Perspective of Information Systems Notes

Information systems can be classified by the specific organizational function they serve as well
as by organizational level.

Figure 2.2: Interrelationships Among Systems

The various types of systems in the organization have interdependencies. TPS are a major
producer of information that is required by the other systems which, in turn, produce information
for other systems.

Notes These different types of systems are only loosely coupled in most organizations.

2.3.1 Sales and Marketing Systems

The sale and marketing function is responsible for selling the organization’s products or services.
Marketing is concerned with identifying the customers for the firm’s products or services,
determine what they need or want, planning and developing products and services to meet their
needs, and advertising and promoting these products and services.

2.3.2 Manufacturing and Production Systems

The manufacturing and production function is responsible for actually producing the firm’s
goods and services. Manufacturing and production activities deal with the planning,
development, and maintenance of production facilities; the establishment of production goals;
the acquisition, storage, and availability of production materials; and the scheduling of
equipment, facilities, materials, and labor required to fashion finished products.

2.3.3 Finance and Accounting Systems

The finance function is responsible for managing the firm’s financial assets, such as cash, stocks,
bonds, and other investments, in order to maximize the return on these financial assets. The
finance function is also in charge of managing the capitalization of the firm. In order to determine
whether the firm is getting the best return on its investments, the finance function must obtain
a considerable amount of information from sources external to the firm.

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