scope:

This part of ISO 24014 provides the basis for the development ofmulti-operator/multi-service Interoperable public surface(including subways) transport Fare Management Systems (IFMSs) on anational and international level. This part of ISO 24014 isapplicable to bodies in public transport and related services whichagree that their systems need to interoperate. While this part ofISO 24014 does not imply that existing interoperable faremanagement systems need to be changed, it applies so far as it ispractically possible to extensions of these. This part of ISO 24014covers the definition of a conceptual framework which isindependent of organisational and physical implementation. Anyreference within this part of ISO 24014 to organisational orphysical implementation is purely informative. The objective ofthis part of ISO 24014 is to define a reference functionalarchitecture for IFMSs and to identify the requirements that arerelevant to ensure interoperability between several actors in thecontext of the use of electronic tickets. The IFMS includes all thefunctions involved in the fare management process such as ?management of application, ? management of products, ? securitymanagement, and ? certification, registration, and identification.This part of ISO 24014 defines the following main elements: ?identification of the different set of functions in relation to theoverall fare management system; ? a generic model of IFMSdescribing the logical and functional architecture and theinterfaces within the system and with other IFMSs; ? use casesdescribing the interactions and data flows between the differentset of functions; ? security requirements. This part of ISO 24014excludes consideration of the following: ? the physical medium andits management; ? the technical aspects of the interface betweenthe medium and the medium access device; ? the data exchangesbetween the medium and the medium access device; NOTE The dataexchanges between the Medium and the Medium Access Device areproposed by other standardization committees. the financial aspectsof fare management systems (e.g. customer payments, method ofpayment, settlement, apportionment, reconciliation).