Assessing dependability of safety critical systems using diverse evidence
نویسندگان
چکیده
منابع مشابه
Assesing dependability of safety critical systems using diverse evidence
A primary objective of the DATUM (Dependability Assessment of safety critical systems Through the Unification of Measurable evidence) project was to improve the way dependability of software intensive safety-critical systems was assessed. Our hypothesis was that improvements were possible if we could incorporate multiple types of evidence. To achieve our objective we had to investigate how to g...
متن کاملDependability of Relational Safety-Critical Programs
Software for safety-critical systems must be highly reliable since failures can have catastrophic consequences. While existing methods, such as formal techniques and testing, can signi cantly enhance software reliability, they have some limitations in achieving ultrahigh reliability requirements. One approach that works for hardware systems is to decompose the system into independent components...
متن کاملAssessing Dependability and Resilience in Critical Infrastructures: Challenges and Opportunities
Critical infrastructures (CI) are very complex and highly interdependent systems, networks and assets that provide essential services in our daily life. Most CI are either built upon or monitored and controlled by vulnerable information and communication technology (ICT) systems. Critical infrastructures are highly interconnected systems and often use common ICT components and networks. Therefo...
متن کاملAn approach to measuring and assessing dependability for critical software systems
Traditional software testing methods combined with probabilistic models cannot measure and assess dependability for software that requires very high reliability (failure rate < 10 /hour) and availability (>0.999999). This 6 paper proposes a novel approach, drawing on findings and methods that have been described individually but have never been combined, applied in the late testing phase or ear...
متن کاملUsing COTS Components in Safety-Critical Systems
Risk is a broadranging and multidimensional topic, including both management risks and technical risks. Management risks for COTS are well known, such as loss of market control, rapid obsolescence, and the shift from a buyer’s market to a seller’s market. Technical risk factors are less well understood. These factors include interoperability and performance issues as well as safety. This paper ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEE Proceedings - Software
سال: 1998
ISSN: 1462-5970
DOI: 10.1049/ip-sen:19984895