Zbornik radova Koridor 10 - Kirilo Savić

3rd International Scientific and Professional Conference
CORRIDOR 10 - a sustainable way of integrations
Figure 5: Interoperable Fare Management System [23]
Figure 5 shows components and relations of an interoperable fare management system. The EN
standard describes the components of the application necessary to support an interoperable
environment:
- accessing the Interoperable Public Transport Application,
- data structure and presentation,
- sizing and enumeration of data,
- data access methodology,
- security and access considerations and
- dealing with legacy systems.
The standard specifies sets of data in a structured form as well as the rules for dealing with those data
to enable products such as tickets to be written and used on Machine Readable Card in a manner to
minimize the amount of data to be held on a card.
Associated with the data is the set of processes which applies to the data within the application. The
inclusion of process provides for similar data to be treated in a similar way by all external services and
terminals leading to true interoperability.
Standard EN 15320 builds data model from data elements primarily originated in EN 1545. Data
elements are grouped together in data structures of different types: mandatory (always presented),
additional (data written at creation of product) and logging (changing data and log data). Data
structures are combined to create 5 different types of data group: application environment, products,
holder, event log and wrapper (intended specifically for migration of legacy systems). Using these 5
data groups with 4 fundamental products (Stored travel rights, Charge to account, Customer
entitlement, Ticket) all functionality of ticketing in public transport can be covered.
The proposed common data model is very extensive and use of optional data elements and data
structures in the processes define typical implementation of a ticketing system. While the EN 15320
represents just a frame the final data model for the implementation can only be prepared after the
common products and pertaining rules and processes have been defined by the public transport
network manager.
Using EN 15320 we must be aware that despite standardization of data elements, data structures and
data groups the standard still allows partially different implementations due to optional data groups
and data elements ensuing from its wide conception.
At the moment there is no commercial implementation based on the EN 15320 standard but there is a
long term commitment for the existing ticketing systems in Europe to migrate to EN 15320. For all
these reasons we propose that Slovenia should apply the EN 15320 standard as a basis for
interoperable ticketing system in public transport.
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