EVS-EN ISO 18541-3:2014

This part of the CEN standard shall deliver all "Functional User Interface require-ments" related to an RMI system. These requirements will reflect the deriving needs from the use cases as specified in part 1.
The following are examples (not a complete list):
  How a user performs login and authenticates himself,
  How a user specifies the vehicle manufacturer, vehicle make, vehicle model, model year, etc. This can be achieved by selection menues or VIN entry,
  How a user navigates through the product information structure,
  How a user specifies RMI search criteria from a list of standardized terms across all vehicle manufacturers;