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Fault

by Antonio Bucchiarone last modified Apr 26, 2012 11:14
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Definitions

Term:
Fault

Domain: Cross-cutting issues
Engineering and Design
(KM-ED)
Adaptation and Monitoring
(KM-AM)
Quality Definition, Negotiation and Assurance
(KM-QA)
Generic
(domain independent)
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Business Process Management
(KM-BPM)
With respect to business process, a well-designed business process could be able to handle fault in order to prevent possible failures.

A fault could influence KPIs and result in a failure. It can be defined as a deviation from a desired KPI

Service Composition and Coordination
(KM-SC)
A design process is necessary to identify and handle faults at run time in a composite service
A Monitoring mechanism could be applied to diagnose a fault. Once a fault has been identified an application may adapt by choosing an alternative service.[CD-JRA-1.1.4] A fault could influence the non-functional requirements

Service Infrastructure
(KM-SI)


A fault can be defined as a deviation in a quality of service in terms of performance dimensions [CD-JRA-1.2.4] [CD-JRA-2.3.4]

Generic
(domain independent)


A manifestation of an error in software. A fault, if encountered, may cause a failure. [FOLDOC]

Fault is an (usually) observable event in the service execution that can produce an erroneous state and, as a consequence, a failure. [CD-JRA-1.2.2]
A fault is defined in document ISO/CD 10303-226,as an abnormal condition or defect at the component, equipment, or sub-system level which may lead to a failure.
According to the Federal Standard 1037C of the United States, the term fault has the following meanings: (i) An accidental condition that causes a functional unit to fail to perform its required function, (ii) A defect that causes a reproducible or catastrophic malfunction. A malfunction is considered reproducible if it occurs consistently under the same circumstances. Failures in hardware can be caused by random faults or systematic faults, but failures in software are always systematic. [Wikipedia] 

 

Competencies

 

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References


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