Audit Information systems & IT Security
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Audit Information systems & and IT Security

Information System audit and IT Security

Definitions and Terminology

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reliability



the property of consistent intended behaviour and results

source: ISO13335-1, 2004


(Service Design) (Continual Service Improvement) A measure of how long a Configuration Item or IT Service can perform its agreed Function without interruption. Usually measured as MTBF or MTBSI. The term Reliability can also be used to state how likely it is that a Process, Function, etc. will deliver its required outputs. See also Availability.

source: ITIL v3, Service Operation, 2007


(Service Design) (Continual Service Improvement) A measure of how long a Configuration Item or IT Service can perform its agreed Function without interruption. Usually measured as MTBF or MTBSI. The term Reliability can also be used to state how likely it is that a Process, Function, etc. will deliver its required outputs. See also Availability.

source: ITIL v3, Service Design, 2007


(Service Design) (Continual Service Improvement) A measure of how long a Configuration Item or IT Service can perform its agreed Function without interruption. Usually measured as MTBF or MTBSI. The term Reliability can also be used to state how likely it is that a Process, Function, etc. will deliver its required outputs. See also Availability.

source: ITIL v3, Service Transition, 2007


(Service Design) (Continual Service Improvement) A measure of how long a Configuration Item or IT Service can perform its agreed Function without interruption. Usually measured as MTBF or MTBSI. The term Reliability can also be used to state how likely it is that a Process, Function, etc. will deliver its required outputs. See also Availability.

source: ITIL v3, Continual Service Improvement, 2007


(Service Design) (Continual Service Improvement) A measure of how long a Configuration Item or IT Service can perform its agreed Function without interruption. Usually measured as MTBF or MTBSI. The term Reliability can also be used to state how likely it is that a Process, Function, etc. will deliver its required outputs. See also Availability.

source: ITIL v3, Service Strategy, 2007



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Auditing Security and IT Systems
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