scholarly journals Using morphological analysis to tackle uncertainty at the design phase for a safety critical application

2015 ◽  
Vol 4 (1) ◽  
pp. 1-8 ◽  
Author(s):  
P.R.N. Childs ◽  
B. Garvey
2009 ◽  
Vol 31 (2) ◽  
pp. 499-503 ◽  
Author(s):  
Joydeb Roy Chowdury ◽  
Sayantica Pattanayak ◽  
A.K. Bhattacharjee

Author(s):  
David Santiago Velasco Moncada ◽  
Daniel Schneider ◽  
Ana Petrovska ◽  
Nishanth Laxman ◽  
Felix Möhrle ◽  
...  

AbstractTraditionally, integration and quality assurance of embedded systems are done entirely at development time. Moreover, since such systems often perform safety-critical tasks and work in human environments, safety analyses are performed and safety argumentations devised to convince certification authorities of their safety and to certify the systems if necessary. Collaborative embedded systems, however, are designed to integrate and collaborate with other systems dynamically at runtime. A complete prediction and analysis of all relevant properties during the design phase is usually not possible, as many influencing factors are not yet known. This makes the application of traditional safety analysis and certification techniques impractical, as they usually require a complete specification of the system and its context in advance. In the following chapter, we introduce new techniques to meet this challenge and outline a safety certification concept specifically tailored to collaborative embedded systems.


2013 ◽  
Vol 823 ◽  
pp. 445-450
Author(s):  
Xi Wang ◽  
Shuo Liu

With the rapidly growing of passenger flow in big city, Communications Based Train Control (CBTC) system is believed to be the chief choice for urban railway transportation system. Interlocking system is a key safety critical application for CBTC, as it provides trains safety routes both in normal condition and under degraded mode. To deal with the logic complexity and high demand for safety, this paper addresses a novel scheme for modeling and realization of CBTC interlocking system. Using SCADE toolset, core function model prototypes are elaborated and software codes are generated automatically. The practical application indicates that this method provides an accurate and complete description for the whole system, and offers a path to gain high quality system implementation.


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