DO-178 Software Development & Certification
DO-178 Software Considerations in Airborne Systems & Equipment Certification
For nearly a decade, CERTON has provided services and solutions to customers across the Aerospace Industry from General Aviation to Space Flight focused on certification of Airborne Software compliant with RTCA/DO-178 Software Considerations in Airborne Systems & Equipment guidelines. CERTON can work closely with you to ensure successful TSO and/or Type Certification during any phase of the software project lifecycle under DO-178B.
DO-178 Design Assurance Level (DAL)
For systems and equipment using software to fulfill a safety related aircraft function, the FAA Advisory Circular 20-115B cites RTCA/DO-178 as a means of compliance to the Federal Aviation Regulations (FARs) Part 21, 23, 25, 27, 29 and 33. The FAA defines RTCA/DO-178B as a means, but not the only means, of compliance to the FARs. It is an extremely rare exception that an alternative means of compliance is used for software in avionics applications
In order to certify safety-critical airborne software using the RTCA/DO-178 guidelines, the system safety assessment process will identify the applicable DAL according to the five failure conditions categories necessary for safe operation identified in the table below.
|Software that would cause or contribute to a failure of the system function resulting in conditions that would prevent continued safe flight and landing.|
|Software that would cause or contribute to a failure of the system function resulting in reducing the capability of the aircraft or the ability to the crew to cope with adverse operating conditions so that there would be a large reduction in safety margins of functional capabilities.|
|Software that would cause or contribute to a failure of the system function resulting in reducing the capability of the aircraft or crew with adverse operating conditions that would create a significant reduction in safety margins or functional capabilities, a significant increase in crew workload, possibly including injuries.|