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Quality Prediction
An S-Cube Working Group
 

Information Source

by Raman Kazhamiakin — last modified Sep 07, 2011 12:50
— filed under:

Definitions

Term:
Information Source		 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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a
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L
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s
 Business Process Management
(KM-BPM)



Service Composition and Coordination
(KM-SC)
In service composition, information sources refer to [Ghezzi & Guinea, 2007]
  • Process state data: properties that predicate on process states and collected through appropriate probes placed throughout the process.
  • SOAP message data: the data related to the events or contents of the message that the service is sending / receiving. The data is collected through the probes that intercept the SOAP messages entering or leaving the system on which the service is deployed.
  • External data: the information that does not belong to the monitored system and should be collected externally.
  • Low level events: the information that is related to a lower level of abstraction and is specific to a particular implementation of the execution engine or infrastructure.

Service Infrastructure
(KM-SI)
An information source is anything that can produce monitoring information. Typical Grid information sources are processors, memories, storage media, network links, applications and processes. [Zanikolas, 2004] [PO-JRA-2.3.1]

Generic
(domain independent)
Information sources represent various components and entities that provide all the data, which is used by the monitor in order to evaluate the monitored properties. These sources may range from rather basic elements (such as messages, log files, or timers), to more complex monitors based on top of them (sensors, probes), to hierarchically complex monitoring systems, thus providing recursive and reusable monitoring solutions. In other words, one monitor may re-use another monitor as a source if information, where the information are the events reported by the latter. [CD-JRA-1.2.2]

 

Competencies

  • TBD

 

Scenarios

TBD

 

References

  • [CD-JRA-1.2.2] Taxonomy of adaptation principles and mechanisms.
  • [Ghezzi & Guinea, 2007] Carlo Ghezzi and Sam Guinea. Run-Time Monitoring in Service-Oriented Architectures. In Luciano Baresi and Elisabetta Di Nitto, editors, Test and Analysis of Web Services, pages 237–264. Springer, 2007.
  • [Zanikolas, 2004] S. Zanikolas and R. Sakellariou. A Taxonomy of Grid Monitoring Systems. Future Generation Computer Systems, 21(2005):163–188, October 2004.
  • [PO-JRA-2.3.1] PO-JRA-2.3.1 Use Case Description and State-of-the-Art
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