1 Scope
This document defines requirements to support information exchanges among related
entities of a common payment scheme. It defines:
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a) EFC-related functional requirements for a common payment medium;
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b) an application structure in a common payment medium;
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c) EFC application data in a common payment medium.
The following is outside the scope of this document:
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— requirements and data definitions for any other transport services such as public transport;
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— a complete risk assessment for an EFC system using a common payment medium;
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— security issues arising from an EFC application among all transport services;
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— the technical trust relationship between a CSRP and a service user;
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— concrete implementation specifications for implementation of security for an EFC system;
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— detailed specifications required for privacy-friendly EFC implementations;
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— any financial transactions of the CSRP.