Management Information Systems
The number of management layers in a firm is determined by

the span of control
the number of managers in the firm
the scalar principle
None of these
the degree of unity in the command

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Management Information Systems
The Management Information System (MIS) provides timely and effective information to support decision making and other necessary management functions. Can you point out the sub-system which does not being to the MIS?

Operational Tectical System
None of these
Data Communication System
Automated Office System
Decision Support System (DSS)

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