Preliminary Risk Assessment

The Preliminary Risk Assessment app enables you to analyze complex systems, which are safety-related. From this app, you can:

  • Identify hazardous situations resulting from functional failures in specific operating modes and operational situations.
  • Qualify the risk with quantitative or qualitative criteria.
  • Define the response to these qualified risks by providing or pointing to the elements demonstrating that the risk is acceptable. This risk can be acceptable according to regulations or by assigning objectives (requirements) that further analyses can demonstrate.

A Preliminary Risk Assessment (PRA) analysis is performed on the system to be analyzed instantiated in its environment. This system corresponds to a logical component that can be defined with architecture authoring apps (Functional & Logical Design, Electrical & Electronics Architecture, ...).

The Preliminary Risk Assessment app offers the following main capabilities:

  • Analyze systems.
  • Identify the functions of components to define their potential failure modes.
  • Identify hazardous events or select existing ones.
  • As a result of the risk assessment, define the rigor with which the analyzed system can be developed. This rigor is often expressed with Assurance Levels or Integrity Levels (ASIL) depending on the specific industry.
  • Associate safety goals or point to the evidence demonstrating that the risk is acceptable with respect to applicable regulations or standards.
  • Generate a report from an analysis.