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

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

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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?

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

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