DO-178C对应的工具鉴定标准，DO-330.DO-330 Software Tool Qualification Considerations Mar 2012

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The rapid increase in the use of software in airborne systems and equipment used on aircraft and engines in the early 1980s resulted in a need for industry-accepted guidance for satisfying airworthiness requirements. DO-178, "Software Considerations in Airborne Systems and Equipment Certification," was written to satisfy this need.

Position Paper CAST-19 Clarification of Structural Coverage Analyses of Data Coupling and Control Coupling Completed January 2004 (Rev 2)

RTCA-DO-178B

Certification Authorities Software Team (CAST) Position Paper CAST-15 Merging High-Level and Low-Level Requirements Completed February 2003

此为DO-178B中文版文档，对于适航这一块有很高的参考价值.

机载系统和设备合格审定中的软件考虑，RTCA DO—178B《机载系统和设备合格审定中的软件考虑》是美国航空无线 电技术委员会为支持含有数字计算机的机载系统和设备的研制工作而开发的软件 开发过程中应遵循的准则。 RTCA DO—178B 适用于机载系统和设备中软件的开发和软件的合格审定。可 供机载系统和设备（含软件）开发者使用，也可供合格审定机构审查使用。

DO-178B中文标准规范，想做民航机载设备的的朋友必须按此标准实现软件开发，详细讲述了每种等级设备的含义以及不同等级的测试标准

A general definition for safety is the “freedom from those conditions that can cause death, injury, illness, damage to or loss of equipment or property, or environmental harm” [1]. The definition of safety-critical software is more subjective. The Institute of Electrical and Electronic Engineers (IEEE) defines safety-critical software as: “software whose use in a system can result in unacceptable risk. Safety-critical software includes software whose operation or failure to operate can lead to a hazardous state, software intended to recover from hazardous states, and software intended to mitigate the severity of an accident” [2]. The Software Safety Standard published by the U.S. National Aeronautics and Space Administration (NASA) identifies software as safety-critical if at least one of the following criteria is satisfied [3,4]: