Design Patterns, which give abstract solutions to commonly recurring design problems, have been widely used in the software and hardware domain. As non-functional requirements are an important aspect in the design of ...Design Patterns, which give abstract solutions to commonly recurring design problems, have been widely used in the software and hardware domain. As non-functional requirements are an important aspect in the design of safety-critical embedded systems, this work focuses on the integration of non-functional implications in an existing design pattern concept. We propose a pattern representation for safety-critical embedded application design methods by including fields for the implications and side effects of the represented design pattern on the non-functional requirements of the overall systems. The considered requirements include safety, reliability, modifiability, cost, and execution time.展开更多
The security assurance of computer-based systems that rely on safety and security</span><span style="font-family:'Minion Pro Capt','serif';"> </span><span style="fon...The security assurance of computer-based systems that rely on safety and security</span><span style="font-family:'Minion Pro Capt','serif';"> </span><span style="font-family:Verdana;">assurance, such as consistency, durability, efficiency and accessibility, require or need resources. This target</span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> the System-of-Systems (SoS) problems with the exception of difficulties and concerns that apply similarly to subsystem interactions on a single system and system-as-component interactions on a large information</span><span style="font-family:'Minion Pro Capt','serif';"> </span><span style="font-family:Verdana;">system. This research addresses security and information assurance for safety-critical systems, where security and safety </span><span style="font-family:Verdana;">are</span><span style="font-family:Verdana;"> addressed before going to actual implementation/development phase for component-based systems. For this purpose, require a conceptual idea or strategy that deals with the application logic security assurance issues. This may explore the vulnerability in single component or a reuse of specification in existing logic in component-based system. Keeping in view this situation, we have defined seven concepts of security assurance and security assurance design strategy for safety-critical systems.展开更多
容错技术是提高系统可靠性的重要途径,软件又是容错技术的灵魂,对于提高系统安全性和可靠性等具有重要的作用。面对安全关键系统功能安全的需求,传统的软件开发方法和模型架构已无法满足。为此,设计了一个新颖的具有容错功能的基于组件...容错技术是提高系统可靠性的重要途径,软件又是容错技术的灵魂,对于提高系统安全性和可靠性等具有重要的作用。面对安全关键系统功能安全的需求,传统的软件开发方法和模型架构已无法满足。为此,设计了一个新颖的具有容错功能的基于组件技术的软件模型架构,该模型将理想的容错结构(Idealised Fault-tolerant Component)和C2(Command and Control)架构有机地结合起来,并将容错机制嵌入到这个新的结构中,定义了正常和异常处理组件以及组件内、外部的接口。此软件容错模型架构利用了组件技术并嵌入了容错机制,能有效地提高系统的功能安全性,设计者能在系统开发的初级阶段就对容错性能进行考虑和设计,用户还能根据具体的需要和应用特点定制自己的容错机制并嵌入到软件容错模型架构中,使其具有支持范围广泛的容错功能。展开更多
文摘Design Patterns, which give abstract solutions to commonly recurring design problems, have been widely used in the software and hardware domain. As non-functional requirements are an important aspect in the design of safety-critical embedded systems, this work focuses on the integration of non-functional implications in an existing design pattern concept. We propose a pattern representation for safety-critical embedded application design methods by including fields for the implications and side effects of the represented design pattern on the non-functional requirements of the overall systems. The considered requirements include safety, reliability, modifiability, cost, and execution time.
文摘The security assurance of computer-based systems that rely on safety and security</span><span style="font-family:'Minion Pro Capt','serif';"> </span><span style="font-family:Verdana;">assurance, such as consistency, durability, efficiency and accessibility, require or need resources. This target</span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> the System-of-Systems (SoS) problems with the exception of difficulties and concerns that apply similarly to subsystem interactions on a single system and system-as-component interactions on a large information</span><span style="font-family:'Minion Pro Capt','serif';"> </span><span style="font-family:Verdana;">system. This research addresses security and information assurance for safety-critical systems, where security and safety </span><span style="font-family:Verdana;">are</span><span style="font-family:Verdana;"> addressed before going to actual implementation/development phase for component-based systems. For this purpose, require a conceptual idea or strategy that deals with the application logic security assurance issues. This may explore the vulnerability in single component or a reuse of specification in existing logic in component-based system. Keeping in view this situation, we have defined seven concepts of security assurance and security assurance design strategy for safety-critical systems.
文摘容错技术是提高系统可靠性的重要途径,软件又是容错技术的灵魂,对于提高系统安全性和可靠性等具有重要的作用。面对安全关键系统功能安全的需求,传统的软件开发方法和模型架构已无法满足。为此,设计了一个新颖的具有容错功能的基于组件技术的软件模型架构,该模型将理想的容错结构(Idealised Fault-tolerant Component)和C2(Command and Control)架构有机地结合起来,并将容错机制嵌入到这个新的结构中,定义了正常和异常处理组件以及组件内、外部的接口。此软件容错模型架构利用了组件技术并嵌入了容错机制,能有效地提高系统的功能安全性,设计者能在系统开发的初级阶段就对容错性能进行考虑和设计,用户还能根据具体的需要和应用特点定制自己的容错机制并嵌入到软件容错模型架构中,使其具有支持范围广泛的容错功能。
