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Model-Based Analysis for Safety-Critical Systems Design

Explore techniques and methods for critical software design in safety-critical systems such as Airbus A380 control and infotainment systems, high-speed train control, and more. Learn about certification standards, good manufacturing practices, safety integrity levels, and fault tolerance mechanisms.

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Model-Based Analysis for Safety-Critical Systems Design

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  1. Introduction ITV Model-based Analysis and Design of Embedded Software Techniques and methods for Critical Software Anders P. Ravn Aalborg University August 2011

  2. Safety Critical Systems • Airbus 380 control system • Airbus 380 infotainment system • High speed train control system • Cruise control in a car • Anaestetics monitoring equipment • Electronic door lock • Net banking application • Playground entertainment system

  3. Software • Acomponent of a system - not in itself critical. • may monitor or control other components - in a safety-critical system. • Thus we must have assurance that it satisfies the requirements (is correct).

  4. Certification • Standardized Assurance • done by independent assessors. • Mandatory for products in some markets; • useful for all products to have followed guidelines in case of conflicts. Good Manufacturing Practices (GMP).

  5. Learning Goals • Safety Integrity Levels (SIL) as described in the standard IEC 61508 • The required processes for SIL level projects • Recommended documentation for SIL level projects • Safety assessment with Fault Trees • Dependability, Fault Tolerance and Mechanisms for Fault Tolerance

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