Safety is the key base of airworthiness. To achieve safety goal requires complex system engineering process which includes systematic planning, overall program management and application of tools and methods. This paper analyzed how to establish the team,how to use proper development process and analysis tools in order to realize safety goal.%安全性是适航的重要基础，为实现规定的安全性目标，必须系统策划，统筹管理，合理配置资源，综合应用各类分析方法和工具。本文就安全性工作团队的组建，项目开发使用的流程，如何有效使用分析工具等问题阐述了安全性实现的一些方法。
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