DO-331 – Model-Based Development and Verification Supplement to DO-178C Essentials Training by Tonex
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This comprehensive course delivers an in-depth understanding of the DO-331 supplement to DO-178C, focusing on model-based development and verification practices within the aerospace and safety-critical software domains. Participants gain clarity on how modeling techniques can support and enhance DO-178C objectives without compromising compliance. A key benefit of this training is its coverage of cybersecurity implications in model-based design—specifically how secure modeling workflows reduce vulnerabilities in airborne software systems. By integrating model-level threat assessments and verification, the course empowers engineers to build systems with stronger cyber-resilience and traceability from requirements to code.
Audience:
- Software Engineers in Aerospace
 - Avionics System Developers
 - Cybersecurity Professionals
 - Certification and Compliance Engineers
 - Quality Assurance Specialists
 - Project Managers in Safety-Critical Projects
 
Learning Objectives:
- Understand the structure and purpose of DO-331
 - Identify the key enhancements DO-331 offers to DO-178C
 - Apply model-based development strategies in avionics projects
 - Analyze verification approaches for model artifacts
 - Recognize cybersecurity impacts of modeling practices
 - Align modeling activities with certification requirements
 
Course Modules:
Module 1: DO-331 Overview
- Purpose of DO-331 supplement
 - Relationship with DO-178C core
 - Regulatory context and stakeholders
 - Scope and limitations of DO-331
 - Applicability to avionics projects
 - Overview of cybersecurity touchpoints
 
Module 2: Modeling in Development
- Role of models in software lifecycle
 - Model-based design principles
 - Abstraction levels in modeling
 - Modeling tools and standards
 - Requirements traceability through models
 - Secure model development practices
 
Module 3: Verification of Models
- Verification objectives per DO-331
 - Model simulation vs. formal review
 - Test case generation from models
 - Error detection strategies in models
 - Coverage criteria and metrics
 - Cyber-risk mitigation in model testing
 
Module 4: Integration with DO-178C
- Mapping models to DO-178C processes
 - Transition from models to source code
 - Integration with tool qualification (DO-330)
 - Handling derived requirements
 - Configuration management of models
 - Security considerations in integration
 
Module 5: Certification Approach
- Certification credits via modeling
 - Planning documents and deliverables
 - Role of authorities and DERs
 - Compliance data for model usage
 - Risk-based approach to certification
 - Protecting model artifacts from tampering
 
Module 6: Case Analysis & Best Practices
- Practical examples in avionics systems
 - Review of successful certification cases
 - Lessons learned in model-based projects
 - Pitfalls and how to avoid them
 - Establishing a secure development culture
 - Best practices for model integrity and validation
 
Enroll now in Tonex’s DO-331 Essentials Training and elevate your expertise in model-based development aligned with DO-178C. Gain the skills to streamline certification, improve system security, and build next-generation avionics software with confidence.
