BS EN ISO 14907-2:2021

What is ISO 14907‑2 about?  

ISO 14907‑2 describes tests that verify on-board unit (OBU) conformance of functions and data structures implementations, as defined in the implementation conformance statement (ICS) based on EFC applications. 

ISO 14907‑2 defines tests for assessing OBU conformance in terms of: 

• Basic dedicated short-range communication (DSRC) L7 functionality, 
• EFC application functions, 
• EFC attributes (i.e., EFC application information), 
• The addressing procedures of EFC attributes and (hardware) components, 
• The EFC transaction model, which defines the common elements and steps of any EFC transaction 
• The behaviour of the interface so as to support interoperability on an EFC-DSRC application 
• Interface level. 

ISO 14907‑2 defines examples of test cases for DSRC and EFC functionality, it does not intend to specify a complete test suite for a certain implementation. 

To compose a test suite for a specific EFC implementation, the test cases can be modified and new test cases can be defined and added in order for the conformance test suite to be complete.  

ISO 14907‑2 can be useful to consider the following when defining a complete test suite: 

• Small range: “exhaustive testing” of critical interoperability/compatibility features, 
• Large range: testing of boundaries and random values, and 
• Composite types: testing of individual items in sequence or parallel. 

NOTE-This document does not define tests which asses: 

• Performance  
• Robustness 
• Reliability of an implementation 

NOTE 1 ISO 14907-1 defines test procedures that are aimed at assessing performance, robustness and reliability of EFC equipment and systems. 

NOTE 2 The ISO/IEC 10373 series defines test methods for proximity, vicinity, integrated circuit(s) cards and related devices that can be relevant for OBUs which support such cards. 

Annex D provides an informative overview of Japanese on-board equipment (OBE) conformance tests which are based on the ISO 14907 series, in order to illustrate how these can be applied in practice. 

Who is ISO 14907‑2 for? 

ISO 14907‑2 on electronic fee collection is useful for: 

• Toll Plaza 
• Paid Parking spots  
• Mall, shopping centre 
• Electronic fee collection device manufacturer 

Why should you use ISO 14907‑2?  

ISO 14907‑2 describes tests that verify on-board unit (OBU) conformance of functions and data structures implementations for electronic fee collection (EFC) applications. 

The purpose of ISO 14907‑2 is to define tests that enable you to: 

• Assess OBU capabilities 
• Assess OBU behaviour 
• Serve as a guide for OBU conformance evaluation and type approval, 
• Achieve comparability between the results of the corresponding tests applied in different places at different times, and 
• Facilitate communications between parties. 

What’s changed since the last update?  

BS EN ISO 14907‑2:2021 supersedes PD CEN ISO/TS 14907‑2:2016. BS EN ISO 14907‑2:2021 includes some technical changes with respect to PD CEN ISO/TS 14907‑2:2016. These include: 

• EFC application interface (i.e., 6.1) has been added 
• The terms have been revised and aligned with ISO/TS 17573-2:2020