The potential consequences and acceptable probability of failure of an avionics system dictate the Design Assurance Level (DAL) that must be met in order for it to be certified for flight. The key computing elements of a system - such as the single-board computers (SBCs), graphics cards, and operating systems built into a flight-control computer or flight display - must all be designed with safety in mind and endure stringent testing to prove they can meet the required DAL. ARP4754 (Guidelines for Development of Civil Aircraft and Systems - Figure 1) is used by avionics designers as they allocate functions to systems and assign DALs to hardware and software for their safety-certifiable systems.
Every month the McHale Report will host an online roundtable with experts from the defense and aerospace electronics industry – from major prime contractors to defense component suppliers. Each roundtable will explore topics important to the military and avionics embedded electronics market. This month our roundtable of industry experts discuss safety certification of embedded commercial-off-the-shelf [...]
The importance of certifying safety critical systems in airborne platforms is an ongoing topic. During this year’s Embedded Tech Trends (ETT), Curtiss-Wright Defense Solutions’ Mike Slonosky took the floor to explain why this demand for D0-254 safety-critical solutions has increased. Within the presentation, he noted the digitization of cockpits; commercial technology advancements over civil population [...]