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The flexible nature of DO-178C's processes and entry/exit criteria make it difficult to implement the first time, because these aspects are abstract and there is no "base set" of activities from which to work. The intention of DO-178C was not to be prescriptive. There are many possible and acceptable ways for a real project to define these aspects.
For example, assignment of the number of days in a month (excluding leap years) could be achieved by using either a switch statement or by using a table with an enumeration value as an index. The number of tests required based on the source code could be considerably different depending upon the coverage required, although semantically we would ...
Given ASIL is a relatively recent development, discussions of ASIL often compare its levels to levels defined in other well-established safety or quality management systems. In particular, the ASIL are compared to the SIL risk reduction levels defined in IEC 61508 and the Design Assurance Levels used in the context of DO-178C and DO-254. While ...
Corresponding with the releases of DO-178C and DO-278A, the present revision, DO-248C, is an update to the previous revision DO-248B, Report for Clarification of DO-178B "Software Considerations in Airborne Systems and Equipment Certification". While new FAQs and discussion papers have been added, most of the FAQs and discussion papers of DO ...
The US FAA have similar functional safety certification processes, in the form of ARP4761, US RTCA DO-178C for software and DO-254 for complex electronic hardware, [7] [8] which is applied throughout the aerospace industry. Functional safety and design assurance on civil/commercial transport aircraft is documented in SAE ARP4754A as functional ...
Depending on the product, the manufacturer has to imprint one of two possible marks on the product label. The Standard Mark or the ISI Mark. The Standard Mark is compulsory for certain types of electronics and IT goods, whereas the ISI mark is mandatory for product categories such as cement, household electrical products, food products, steel ...
This list is based on the Forbes Global 2000, which ranks the world's 2,000 largest publicly traded companies.The Forbes list takes into account a multitude of factors, including the revenue, net profit, total assets and market value of each company; each factor is given a weighted rank in terms of importance when considering the overall ranking.
Indian Oil provides products and services all along the energy value chain, and is India's largest commercial entity. The firm has been on the Global 500 as long as the list has been recorded. 160 Oil and Natural Gas Corporation: $61,420 43,743 State-owned crude oil and gas company, currently the largest in India. 236 State Bank of India ...