设计保障级别 Design Assurance Levels(DALs) DO-178B引入了(并且DO-178C继续使用)设计保证级别(DAL)的基本概念,该概念根据对飞机安全的贡献程度定义了应由设计保证流程应用的严谨程度。DAL越高,作为设计保证流程一部分必须执行和完成的活动和目标就越多,因为软件发生故障或失效可能对飞机造成的后果更为严重。设计保证...
A key provision of DO-178C meant to facilitate cost-effective assurance is the definition of Design Assurance Levels (DAL). These five assurance levels are based on the consequences of potential software failure to the system as a whole and are determined by the system safety assessment process...
DAL C – Major – 62 Objectives need to be satisfied. DAL D – Minor – 26 Objectives need to be satisfied. DAL E – No Effect – No Safety Effect The following tables provide an overview of the mandatory software lifecycle data for all DAL levels, including DAL E. A...
Each CertKit comes with a frequently updated Safety bulletin, mentioning known Safety alerts and improvements. Customers can switch to long term maintenance for a selected certifiable product and also purchase a source code option for higher DAL levels. ...
Software planning is the initial phase of the DO-178C certification process. It involves defining the software development life cycle, including processes, tools, and resources required for software development. The planning phase also includes the identification of software levels (DAL A to E) and...
Design Assurance Levels (DALs) DO-178B introduced (and DO-178C continued to use) the fundamental concept of the Design Assurance Level (DAL), which defines the amount of rigor that should be applied by the design assurance process based on the contribution to Aircraft Safety. The higher the...
The DO-178 standards require that all airborne software be assigned a Design Assurance Level (DAL) based on the potential effects of a failure in the system, ranging from the lowest level E (“No Effect”) to the highest level A (“Catastrophic”). The standards also outline various process...
This DO-178C DAL A COTS certification evidence package benefits both military and commercial drones, also known as Unmanned Air Vehicles (UAVs) and small Unmanned Aerial Systems (sUAS). In the United States, UAVs have only been allowed to fly within line-of-sight of an observer, either on ...
内容提示: 数据耦合与控制耦合的示例图浅谈 DO -178C 中数据耦合与控制耦合目标的实现孔德岐,钟珊(航空工业西安航空计算技术研究所,陕西 西安 710068)摘要:根据 DO -178C 的要求,DAL A/ B/ C 级软件的测试覆盖必须实现数据耦合与控制耦合的目标。 介绍了数据耦合与控制耦合的定义,以及数据耦合与控制耦合分析的...
DO-178C要求基于需求的测试结构覆盖率分析可以在源代码,目标码或者可执行目标码级别开展,如果结构覆盖率分析在源代码级别开展,那么测试覆盖分析并不包含对编译器,链接器产生的附加代码的验证.DO-178C要求A级软件应特别关注这些附加代码,对附加代码进行识别,并按照正常代码的验证要求对附加代码进行验证.在分析DO-178C,...