scope:

The present document has been prepared to provide a model for designing and operating the checking-up on metering and billing processes of Service Providers.

Because the checking-up approach of the present document is end-to-end (i.e. using a "black box" approach from the actual electronic communications generation to the checking-up on their billing), it is intended that these requirements are applicable to the metering and billing of any kind of services offered by the Service Providers.

The goal of the present document is to define a standardized checking process and the test methodology that could be implemented by any stakeholder and is auditable by a third-party, leading to trustworthy performance indicators about the integrity of billing issued by a Service Provider.

NOTE: It is important to note that the present document does not provide any model for designing and operating the metering and billing process itself.