Abstract: Definition of SLA parameter is core content for development of SLA template. In the multi-provider environment development of a new service need to define different layers SLA. Currently a general SLA parameter definition method supporting development of SLA template is absent. based on current requirements and problems, A general SLA parameter definition method is presented, the problem on simultaneously defining different layers SLA parameters of the service is systematically solved and the method has been applied in the design and implementation of a prototype.

Key words: service level agreement, service level agreement parameter, key quality indicator, service level agreement template