Information System in an Organization:

Top managers make strategic decisions using unstructured information, as we have discussed. Middle managers make tactical decisions using semi-structured information. Lower level managers make operational decisions using structured information, the purpose of a computer based information system is to provide managers with the appropriate kind of information to help them make decisions.

Types of Computer Based Information System:

Here we describe the following types of computer based information systems, corresponding to the three management layers and their requirements.

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