NexComm 2014
February 23 - 27, 2014
Nice, France

DigitalWorld 2014
March 23 - 27, 2014
Barcelona, Spain

InfoSys 2014
April 20 - 24, 2014
Chamonix, France

BioSciencesWorld 2014
April 20 - 24, 2014
Chamonix, France

ComputationWorld 2014
May 25 - 29, 2014
Venice, Italy

InfoWare 2014
June 22 - 26, 2014
Seville, Spain

DataSys 2014
July 20 - 24, 2014
Paris, France

NexTech 2014
August 24 - 28, 2014
Rome, Italy

SoftNet 2014
October 12 - 16, 2014
Nice, France

NetWare 2014
November 16 - 20, 2014
Lisbon, Portugal

 

ThinkMind // DEPEND 2011, The Fourth International Conference on Dependability // View article depend_2011_3_10_40034


Methodology and Experience for Designing Safety-Related Systems in IEC 61508

Authors:
Zhe Chen
Gilles Motet

Keywords: safety-related system; IEC 61508; functional validity; verification; model checking; formal method; SPIN

Abstract:
The international standard IEC 61508 provides a generic process for electrical, electronic, or programmable electronic (E/E/PE) safety-related systems (SRS) to achieve an acceptable level of functional safety. This paper first proposes the concept of emph{functional validity} of SRS, based on our observation on two important problems that occur in industrial practice, i.e., the rightness of overall and allocated safety requirements and the lack of technical methodologies for validating SRS. emph{Functional validity} means whether the safety functions realized by SRS can really prevent accidents and recover the system from hazardous states, provided the expected safety integrity level is reached. Then this paper proposes a generic technical methodology to achieve the functional validity of SRS, and summarizes industrial experiences in designing functionally valid SRS. A concrete example is used to illustrate the proposed methodology.

Pages: 57 to 64

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-4324

ISBN: 978-1-61208-149-6

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011

SERVICES CONTACT
2010 - 2014 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.