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Adaptation Mechanism

by Benedikt Liegener last modified Apr 26, 2012 09:35
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Definitions

Term:
Adaptation Mechanisms
Domain: Cross-cutting issues
Engineering and Design
(KM-ED)
Adaptation and Monitoring
(KM-AM)
Quality Definition, Negotiation and Assurance
(KM-QA)
Generic
(domain independent)
D
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n
:
L
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Business Process Management
(KM-BPM)




Service Composition and Coordination
(KM-SC)




Service Infrastructure
(KM-SI)




Generic
(domain independent)

Adaptation Mechanism is the tool and mechanism provided by the underlying platform in different Functional Layers of Service-Based Application that allow for the implementation of various Adaptation Strategies. [PO-JRA-1.2.1]


They may be classified according to a set of characteristics, including dynamicity and
automation of strategy selection [CD-JRA-1.2.2]:

  • Dynamicity of decision: refers to the flexibility, with which the adaptation approach may decide on the strategy to be applied in a given situation in order to better satisfy the adaptation requirements. One can distinguish: static selection, when the adaptation strategy is predefined and explicitly associated with the given adaptation requirement, situation or event; dynamic selection, when the adaptation strategy is selected at run-time based on a concrete situation, information, and context properties; and evolution-based selection, when the adaptation strategy is chosen taking into account not only the current situation, but also the history of previous decisions, adaptations, and their results.
  • Automation of selection: characterizes the degree of the human involvement in the decision process. The degree can range from totally automatic (no user intervention is needed), to interactive (where the user makes the choice).




 

Competencies

 

References




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