System Quality Description

PROBLEM:
You need a short list of system quality issues

SOLUTION:

1. Security - Ability of a system to protect itself and its resources from unauthorized use – including access, disclosure, modification, and destruction.
2. Availability - Ability of a service to remain operational, with minimal interruption or degradation, based on a service level. In the event of a failure of one or more of its parts, a service should remain operational. The level of tolerance for faults will vary, so one or more parts has a bound that is influenced by other business conditions.
3. Reliability - Ability of a system component to repeatedly produce the same results in accordance with its specifications.
4. Performance - Refers to a combined measurement of response time and throughput that meets established, service-level agreements. This may include network performance or latency between two network end points or, more importantly, how it effects a client application and end user.
5. Scalability - Ability of an architecture to accommodate greater intermittent or sustained demands for service without reducing performance or availability. The network provides scalability by being able to handle additional traffic, services, and service instances (hosts, switches, and so on).
6. Manageability - Ease with which a system can be managed, monitored, and maintained.

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