CEN ISO/TS 17444-2:2013

This specificaton provides the necessary elements and framework to define the examination methodologies for the consistent determination of charging performance for electronic fee collection (EFC) systems.
Part 1, Metrics, describes a set of metrics with appropriate definitions, principles and  formulations, which together make up a reference framework for the examination of the charging performance of EFC systems.  
This technical specification  - Part 2: Examination framework, will describe the examination framework for the metrics identified in Part 1 for both discrete and continuous toll schemes.
The examination framework will identify and describe examination methods for the  metrics that are relevent for:-
- Evaluation - assessments carried out during a limited time span, such as when formulating requirements and assessing systems for acquisition purposes, conducting acceptance testing as part of the commissioning process, or as part of a certification procedure the implementation and operation phases of an EFC Scheme.
- Monitoring - assessments needed as an ongoing supervision process, throughout the lifetime of a system, in order to validate contracted service levels, to identify fraud or malfunction, or to support ongoing maintenance and performance improvement processes.
The definition of  the examination methods to compute the identified metrrics should be
- independent of internal OBE technology
- repeatable by various examining entitites
- provide comparable results for common test conditions
It should be noted that tests for anticipating the performance in one system (scheme) by transposing achieved results in another system (scheme) is not within the scope. System certification is not in the current objectives either.