关键词: 目标符合性, 证据收集, 证据收集成本, 收集力度

Abstract: Objectives confirmity argument for standards is an important issue in the field of airworthiness certification. In the process of confirmity argument, it is necessary to collect evidence further if there is insufficient evidence to demonstrate that the objectives confirmation reaches the desired value. However, due to the lack of effective methods to delineate the scope of evidence collection and collection efforts, evidence collection is usually costly and inefficient. Therefore, it is necessary to avoid collecting any evidence of inefficient and high collection costs to ensure that the total cost of evidence collection is lower when the objective compliance statement reaches the desired value. In this paper, according to the principle of minimizing the cost of evidence collection, an evidence collection approach for cost-optimized is proposed based on the quantitative analysis, so as to clarify the evidence and collection efforts to reduce the unnecessary consumption of time, human and material resources. To evaluate the effectiveness of the approach, combined with the RTCA DO-178C airworthiness certification standard, one case study of multi-branch coverage is conducted.

Key words: objectives conformity, evidence collection, cost of evidence collection, collection efforts