TIA前机载软件成熟度评估的相关研究

Related Research on the Assessment ofAirborne Software Maturity Prior to TIA

率先引入了FAA(美国联邦航空局)提出的软件成熟度的概念。局方正式签发TIA(型号检查核准书)前,在软件的构型和符合性均未达到最终冻结状态的情况下,通过对软件的成熟度进行有效评估,可以为验证试飞前软件的工程批准提供有力的支持与保障,在一定程度上降低局方飞行试验的风险,保障适航验证试飞活动的顺利开展。由于机载软件成熟度是一个新兴的概念,目前局方(FAA、CAAC)对于如何进行成熟度评估尚未形成正式的、通用的政策性指导文件,国内主机厂对此问题也没有相关的处理经验和具体的操作方法。基于机载软件本身的特点,参考局方在机载软件审查时的主要关注点,提出了TIA前机载软件成熟度评估的基本考虑要素与分析重点。

This paper first introduces the software maturity concept proposed by FAA. In the condition that the software configuration and compliance status are not frozen before TIA, assessing the software maturity efficiently can provide powerful support and assurance to the engineering approval of the software, as well as reduce the risk of the certification credit flight test to a certain extent and ensure successful flight test activities. Presently, as the software maturity is a new concept, the certification authority （FAA, CAAC） hasn＇t released the formal and general policies or guidance, and domestic airframer doesn＇t have any related experience or methods either. This paper proposes some basic consideration factors and analysis points based on the characteristics of the airborne software and on referencing the key points that the certification authority pays special attention to in the software certification.