An XML model for SLA definition with key indicators

Authors:
Emir Toktar;Guy Pujolle;Edgard Jamhour;Manoel C. Penna;Mauro Fonseca
Affiliations:
University of Paris VI, Paris;University of Paris VI, Paris;Pontifical Catholic University of Paraná, PPGIA, Curitiba, Brasil;Pontifical Catholic University of Paraná, PPGIA, Curitiba, Brasil;Pontifical Catholic University of Paraná, PPGIA, Curitiba, Brasil
Venue:
IPOM'07 Proceedings of the 7th IEEE international conference on IP operations and management
Year:
2007

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Abstract

This work proposes a XML-based model for the specification of service level agreements (SLA). The model has XML elements to define a semantic to represent key performance indicators (KPI) and key quality indicators (KQI) and the relationship between them. Upper and lower thresholds are associated to the indicators in order to indicate warnings or errors conditions. The relationship between the indicators is expressed by reusable functions which are evoked by the XML-based model. An example of reusable function for calculating the KQI service availability based on KPI indicators is also presented in this paper.