Pentagon Consulting
Engineering Management, Systems & Safety
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Safety Case - Goal Structuring Notation


Pentagon is Australia’s leading authority on the use of Goal Structuring Notation for the development of Safety Cases and can add value by virtue of our considerable experience in the design of advanced GSN paradigms.

Our Goal Structuring Notation models are an effective methodology to develop, maintain and review of any type of Safety Case. They present well-structured safety arguments supported by a body of objective quantitative and qualitative evidence which is centrally managed from within the GSN software tool – ASCE. 

Our GSN Models store living bodies of evidence which are iteratively updated throughout a Capabilities Lifecycle, providing an ongoing assessment of a Mission Systems compliance status and maintaining the currency of the Safety Case.

The Australian Department of Defence has engaged Pentagon to undertake extensive GSN Modelling and Safety Case development for Complex Military Mission Systems. Our GSN models provided the ADF with an ongoing assurance that the evaluated Mission Systems were safe to own, safe to operate, and were operated safely. 

Additionally, the GSN Models we develop allow for the generation of Mission System Status reports in support of Command Decisions during combat or strategic deployment operations. These reports can also support technical and operational safety and engineering assurance processes at various decision points within a Materiel’s life-cycle.

Pentagon can undertake high-level Safety Case and Engineering Compliance Assessments for all Allied Defence Forces or Civilian Customers. The Goal Structuring Notation paradigms we develop can readily provide arguments to support a claim that, the evaluated Defence Mission/Combat Systems or Civilian Systems is designed, constructed, and operated in accordance with NATO Engineering Specifications (such as ANEP77), NATO and Defence Regulatory Systems, or Civilian Regulatory requirements.


Speak with a Professional Engineer today. 


Call Pentagon Consulting on 0408 600 555 or email us now.