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A Methodology for the Development of Assurance Arguments for Unmanned Aircraft Systems

机译：为无人驾驶飞机系统开发保证论据的方法

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A key requirement when obtaining regulatory authorization to conduct certain kinds of unmanned aircraft system (UAS) operations in civil airspace, e.g., beyond line-of-sight, and over congested areas, is to create and submit a safety case. Central to modern safety cases is a notion of argument, i.e., an explicit chain of reasoning linking the required safety substantiating evidence to the overall safety objectives and assertions. In this paper, we present a methodology for the principled development of structured arguments, supporting both top-down and bottom-up argument development approaches. We use the goal structuring notation (GSN) to present the arguments created, and leverage our toolset, AdvoCATE, for automation support. Our methodology focuses on the data flow between its six constituent activities building upon, and extending, our earlier work on a lightweight approach for assembling safety arguments from the artifacts of an integrated systems and safety engineering process for small UAS. We have applied some of the activities to create assurance arguments for real aviation systems, which in turn, has informed the development of the methodology. We give two examples of applying our methodology to UASs, addressing aspects of operational safety assurance in one example, and airworthiness in the other.
机译：在获得法规授权时进行民用空域的某些无人机系统（UAS）行动的关键要求，例如，超出视线和拥挤地区，是创建和提交安全案例。现代安全案例的核心是一个论点的概念，即，一个明确的推理链，将所需的安全性证实证明总体安全目标和断言。在本文中，我们提出了一种有关结构性论点的原则发展的方法，支持自上而下和自下而上的论证开发方法。我们使用目标结构化符号（GSN）呈现创建的参数，并利用我们的工具集，倡导者倡导器，倡导自动化支持。我们的方法侧重于其六个组成活动之间的数据流程，我们早先在对小UAS的集成系统和安全工程过程的伪影中组装安全参数的轻量级方法。我们已经应用了一些活动，为实际航空系统创造保证论据，这反过来又会了解了方法的发展。我们提供了两个将方法应用于uass的两个例子，在一个示例中解决操作安全保证的方面，以及另一个示例中的适航性。

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