DO-248C, Supporting Information for DO-178C and DO-278A, published by RTCA, Incorporated, is a collection of Frequently Asked Questions and Discussion Papers addressing applications of DO-178C and DO-278A[1] in the safety assurance of software for aircraft and software for CNS/ATM systems, respectively.
Like DO-178C and DO-278A, it is a joint RTCA undertaking with EUROCAE and the document is also published as ED-94C, Supporting Information for ED-12C and ED-109A.
[3] The present revision is also expanded to include the "Rationale for DO-178C/DO-278A" section to document items that were considered when developing DO-178B and then DO-178C, DO-278A, and DO-330, as well as the supplements that accompany those publications (DO-331, DO-332, DO-333).
Some of these items have been marked as deleted or updated as the subjects were addressed by the releases of DO-178C, DO-330, supplements, or other publications.
[1] Initially, this publication was an annual clarification report, DO-248B (2001) was preceded by DO-248A (2000) and DO-248 (1999).