ARINC Specification 840-2:2012

The document defines a common software interface boundary between Electronic Flight Bag (EFB) application software and the EFB platform. The standard interface will allow EFB applications to be launched and controlled independent of other EFB applications. Supplement 2 provides enhancements to the original specification, including a data repository service where common flight data parameters can be used among several applications running on the EFB. A virtual keyboard and line printer service is also included.