A method and system for managing a service level of a service provided by a service provider to a customer under a service level agreement. The measurement data is adjudicated to correct the measurement data in accordance with at least one adjudication element that identifies a rule specifying how to correct the measurement data. The adjudicated measurement data is transformed into operational data by merging the adjudicated measurement data using a logic specified in the service level agreement. The operational data is evaluated by applying a formula to the operational data, resulting in the operational data being configured for being subsequently qualified. The operational data is qualified by comparing the evaluated operational data with specified service level targets for at least one service level period and identifying operational data points meeting and/or not meeting the specified service level targets.