Developing Safety-Critical Software

Appendix C Questions to Consider When Selecting a Real-Time Operating System for a Safety-Critical System

Chapter 20 discusses the typical characteristics, features, and issues with realtime operating systems (RTOSs). This appendix includes a list of questions to consider when choosing an RTOS for inclusion in a safety-critical system (as with other parts of this book, it is assumed that DO-178B or DO-178C is required). The questions are divided into three categories (general questions, RTOS functionality questions, and RTOS integration questions); however, the three categories are inter-related. In addition to the author’s experience, two sources were used to compile this list of questions: (1) Federal Aviation Administration (FAA) Software ...