Understanding and Performing Hazard Analysis in MADE 3.8.9

This KBA provides a step by step guide to create and use Hazard Diagrams.

Overview

Hazard Analysis in MADE is a systematic process used to identify and evaluate potential hazards within a system. The analysis helps in assessing risks and implementing appropriate control measures to ensure system safety.

Prerequisites

• Access to MADE 3.8.9 software
• Appropriate system model in the project explorer
• Access to SRA Module
• Valid criticality profile

Step-by-Step Process

Creating a Hazard Diagram

1. Navigate to the project explorer.
2. Select the desired model item.
3. Right-click and select "Hazard Diagram."

Setting Up Risk Profile

1. Access Preferences > Criticality profile editor.
2. Select the appropriate risk profile for your analysis.
3. Ensure the OSD-supported criticality profile is selected.

Assigning Criticality Parameters

1. In the hazard diagram, select a hazard concept.
2. Navigate to the 'MIL-STD-882E' tab in the Properties viewer.
3. Assign appropriate criticality parameters.
   • For software-related hazards: set the software control parameter value ≥ 1 in the 'MIL-STD-882E' section.

Managing Control Measures

If control measures exist:

1. Right-click the concept.
2. Select "Control Measure."
3. Choose from predefined control measures or create custom ones.
4. Review and adjust criticality parameters through the Barrier matrix in the control measures window.

Performing Hazard Path Analysis

1. In the project explorer, select the system level item.
2. Right-click and select "Hazard Path Analysis."
3. Review initial risk values for each hazard path.
4. Evaluate if risk meets safety requirements.

Risk Assessment and Mitigation

If risk exceeds the acceptable threshold:

1. Assign hazard control measures to appropriate concepts.
2. Right-click the concept and select control measures.
3. Choose existing or create new control provisions.
4. Revise criticality parameters using the Barrier matrix.

Key Components of Hazard Analysis

• Hazard Sources
• Initiating Mechanisms
• Target/Threat Outcomes
• Initial Risk Assessment
• Compensating Provisions
• Detection Methods
• Prevention Controls
• Substantiation Actions

Best Practices

• Always ensure the correct criticality profile is selected before beginning analysis.
• Document all control measures and their justifications.
• Regularly review and update hazard analyses as system changes occur.
• Pay special attention to software-related hazards and their control parameters.

Note: this process is iterative and may require multiple revisions to achieve acceptable risk levels for all identified hazards.