A System can be in any of 7 states. The description of the states of a system, provided here, is applicable to all the real-time systems, ranging from computers systems to high end missiles, a human personnel to an organization.
IDEAL
An ideal state is a standard of perfection, existing merely as an image in the mind or based upon a person or upon conduct.
If the obtained outcome matches with the expected output, then the system is said to be in an Ideal state.
DEFECTIVE
A defect refers to various troubles within the software products, with its external behavior or with its internal features.
It may be a mistake in coding or logic that causes a program to malfunction or to produce inappropriate results.
FAULTY
Fault is the representation of a defect at the abstracted function level.
It is an incorrect step, process, or data definition in a computer system which causes the program to perform in an unintended manner.
It is an unattractive or unsatisfactory feature, especially in a piece of work.
It is an abnormality at the component, equipment, or sub-system level which may finally lead to a failure.
ERRONEOUS
An error is the manifestation of the fault in the system.
It is an identified difference between a computed, observed, or measured value or condition and the true, specified, or theoretically correct value or condition.
MALFUNCTIONING
A malfunction is the state of an object that functions wrongly or does not function at all.
It is considered reproducible if it occurs consistently under similar circumstances.
DEGRADED
A state of degradation means to lower in estimation, which results in reduction of quality or value.
If the service degrades outside the bounds, the service is considered failed.
FAILED
The inability of a system to perform its required intended functions within specified performance requirements.
A system failure occurs when the delivered service deviates from the specified expected service in fulfilling the system function.
A failure occurs when fault executes.
Illustrating Example:
Consider a Computer System which is functioning properly. A defect in SMPS fan creates heat in SMPS, which may cause an Improper power supply to components. As a result, an error may occur in components like data transmission problems in system buses. This causes malfunctioning of components, which results in degradation of the system like system struck-ups and finally ends up with the system failure.
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K. Chandra Shekar
Sphoorthy Engineering College
K. Chandra Shekar
Sphoorthy Engineering College
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| Sphoorthy Engineering College |
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