Timescale of interest in traffic measurement for link bandwidth allocation design

Y Kim, S Li - Proceedings of IEEE INFOCOM'96. Conference on …, 1996 - ieeexplore.ieee.org
Consider the link bandwidth allocation for transport of correlated traffic through a queueing
system under a maximum allowable delay constraint d/sub max/. We decomposed the traffic …

Software tools for safety-critical software development

A Wassyng, M Lawford - International Journal on Software Tools for …, 2006 - Springer
We briefly present a software methodology for safety-critical software, developed over many
years to cope with industrial safety-critical applications in the Canadian nuclear industry …

FASTEN: An open extensible framework to experiment with formal specification approaches

D Ratiu, M Gario, H Schoenhaar - 2019 IEEE/ACM 7th …, 2019 - ieeexplore.ieee.org
Formal specification approaches have been successfully used to specify and verify complex
systems. Verification engineers so far either directly use formal specification languages …

Translation of IEC 61131-3 function block diagrams to PVS for formal verification with real-time nuclear application

J Newell, L Pang, D Tremaine, A Wassyng… - Journal of Automated …, 2018 - Springer
The trip computers for the two reactor shutdown systems of the Ontario Power Generation
(OPG) Darlington Nuclear Power Generating Station are being refurbished due to hardware …

[HTML][HTML] Formal verification of function blocks applied to IEC 61131-3

L Pang, CW Wang, M Lawford, A Wassyng - Science of Computer …, 2015 - Elsevier
Many industrial control systems use programmable logic controllers (PLCs) since they
provide a highly reliable, off-the-shelf hardware platform. On the programming side, function …

Tabular expressions and their relational semantics

R Janicki, A Wassyng - Fundamenta Informaticae, 2005 - content.iospress.com
Abstract Tabular Expressions (Parnas et al.[20, 28, 32, 33]) are means to represent the
complex relations that are used to specify or document software systems. A formal model …

[PDF][PDF] Something is Rotten in the State of Documenting Simulink Models.

V Pantelic, A Schaap, A Wassyng… - …, 2019 - pdfs.semanticscholar.org
In this paper we draw on our experience in the automotive industry to portray the clear need
for proper documentation of Simulink models when they describe the implementations of …

Timing tolerances in safety-critical software

A Wassyng, M Lawford, X Hu - … of Formal Methods Europe, Newcastle, UK …, 2005 - Springer
Many safety-critical software applications are hard real-time systems. They have stringent
timing requirements that have to be met. We present a description of timing behaviour that …

A methodology for the simplification of tabular designs in model-based development

M Bialy, M Lawford, V Pantelic… - 2015 IEEE/ACM 3rd …, 2015 - ieeexplore.ieee.org
Model-based development (MBD) is increasingly being used to develop embedded control
software, with Matlab Simulink/Stateflow being the most widely used MBD language in the …

Formalizing and verifying function blocks using tabular expressions and PVS

L Pang, CW Wang, M Lawford, A Wassyng - Formal Techniques for Safety …, 2014 - Springer
Many industrial control systems use programmable logic controllers (PLCs) since they
provide a highly reliable, off-the-shelf hardware platform. On the programming side, function …