Guideline for design and safety validation of safety-critical functions realized with hardware description language (NT TR 578)

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  • Report #: NT TR 578
  • Approved: May 2005
  • Author(s): Andreas Söderberg, Jacques Hérard, Lars Bo Mortensen
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This technical report describes the very detailed design process, the verification process and the safety validation process of a safety-related electronic control system to be implemented mainly into an ASIC. The report aims to support the system designer team as well as the safety assessment team.

In addition, this report is the fundamental basis of the Nordtest method “Validation of safety-critical functions realized with hardware description language” for conformity assessment of safetyrelated functions implemented partly in digital circuits.


Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.