PERTURBATION CONTROL Definition

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PERTURBATION CONTROL is a restriction control to limit the access a particular user has to details in a database.  It introduces noise into the output (perturbs, or changes it) to shield the specifics of one record from the person who has only access to summary information.

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CASH FLOW ANALYSIS is a type of financial analysis that compares the timing and amount of cash inflows with the timing and amount of cash outflows. A firm's cash flow position can greatly affect its ability to remain in business. These effects may not be apparent from a cost-benefit analysis.

ORIGINAL FACE is the the face value (original principal amount) of a security, generally a mortgage- or asset­-backed security, as of its issue date.

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