Statistical detection of QoS violations based on CUSUM control charts

  title={Statistical detection of QoS violations based on CUSUM control charts},
  author={Ayman Amin and Alan W. Colman and Lars Grunske},
Currently software systems operate in highly dynamic contexts, and consequently they have to adapt their behavior in response to changes in their contexts or/and requirements. Existing approaches trigger adaptations after detecting violations in quality of service (QoS) requirements by just comparing observed QoS values to predefined thresholds without any statistical confidence or certainty. These threshold-based adaptation approaches may perform unnecessary adaptations, which can lead to… CONTINUE READING
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