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FCTUC Faculdade de Ciencias e Tecnologia Universidade de Coimbra (Portugal)                                                      .

CISUC - Centre for Informatics and Systems of the University of Coimbra

Person in charge
Prof. Henrique Madeira This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Mrs. Paula Lopes ‪ This e-mail address is being protected from spambots. You need JavaScript enabled to view it


FCTUC partner is a world leading research group in the field of fault injection and has proposed and built many fault injection tools using a variety of approaches. Since first proposals of pin-level fault injection tools in late 80’s, FCTUC research has moved to software implemented fault injection (SWIFI) in the 90’s leading to the proposal of the Xception tool, which eventually became a standard de facto for fault injection, particularly after the development of its commercial version by CSW in late 90’s. In recent years, the group at FCTUC has been focused on solving the problem of injecting realistic software faults (i.e., software bugs), which is a central issue in component based development of safety critical systems.


Although a methodology for the injection of realistic software faults has been recently proposed by the group at FCTUC (and some tool prototypes have already been developed), there is still a considerable way to go to have portable and practical software fault injection tools that can be used in an industrial contexts. CRITICAL STEP is a strategic project to further develop the software fault injection methodology already proposed and to validate it in a real-world context. Additionally, new utilizations of software fault injection techniques, such as the experimental component risk assessment and evaluation and validation of diagnosis and online monitoring techniques can be foresighted. The following points summarize our plans to address these issues:

  • The transfer of knowledge from FCTUC to CSW and SESM on realistic models for software fault injection, particularly in what concerns to the injection of faults at the executable code level, is essential to develop adequate software fault injection tools that can be used effectively in the validation of SCSs. The fact that in many cases the code of OTS components is not available means that the injection of software faults at executable code level is essential. Currently there are no tools available for the industry to perform such kind of fault injection.
  • FCTUC will benefit from the experience of industrial partners SESM and CSW to further develop experimental safety risk assessment techniques. In particular, the validation of such techniques cannot be done without the experience on real-world scenarios of safety critical systems provided by SESM and CSW.
  • Given the expertise of CINI/UoN on diagnosis and online monitoring, FCTUC is also planning to study with CINI/UoN the possibility of using realistic software fault injection techniques to help in the evaluation and validation of diagnosis and online monitoring in complex systems.

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The information presented on this web site has been produced in the context of the CRITICAL-STEP project, which is in receipt of funding from the
European Community's 7th Framework Programme (FP7/2007-13) under grant agreement No. 230672. All information on this web site is provided "as is"
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