The Aerospace and Defense industry is rapidly embracing digital engineering practices to accelerate innovation and maintain a competitive edge. According to a recent MathWorks survey, 53% of engineers in this sector are actively working to establish a digital thread that connects data and artifacts across the system development lifecycle. Yet, 50% of respondents identified traceability – tracking and linking requirements, models, code, and tests – as a major workflow challenge. 

While organizations invest heavily in building digital threads, one critical element is often overlooked: verification. Without integrating verification into the digital thread, traceability remains incomplete and the full benefits of digital transformation are left unrealized. 

The Overlooked Role of Verification in Traceability 

Traceability is more than just connecting requirements to models or code. True end-to-end traceability must include the verification process—ensuring that every requirement is not only implemented, but also rigorously tested and validated. This means: 

• Linking test cases directly to requirements and models 

• Capturing and associating test results with specific engineering artifacts 

• Enabling clear audit trails for compliance and certification 

Neglecting verification in your digital thread exposes your organization to late-stage surprises, compliance risks, and inefficiencies that undermine your digital investment. 

How Simulation-Based Verification Strengthens the Digital Thread 

Modern verification workflows leverage simulation to automate the testing process early and often. The workflow typically involves: 

1.  Authoring Test Cases – Engineers create test scenarios directly linked to requirements. This ensures that every requirement is explicitly tested and nothing falls through the cracks. 
2.  Executing Simulations – Automated tools simulate these test cases against system models, checking for correct behavior under a range of conditions. 
3. Automatic Results Checking – The outputs of each simulation are automatically compared to expected behaviors, flagging discrepancies immediately. 
4. Continuous Integration (CI) Ready – Simulation-based verification can be integrated into CI pipelines, providing rapid feedback as designs evolve. 

The Business Benefits: Early Error Detection and ROI 

Integrating verification into your digital thread delivers tangible, strategic advantages: 

1. Early Error Detection – Catching issues during the design phase is exponentially less costly than discovering them during integration or testing. Early detection reduces rework, shortens schedules, and minimizes risk. 
2. Improved Test Coverage and Compliance – With every requirement linked to a test case and result, organizations can generate coverage metrics and compliance reports automatically – streamlining audits and certification. 
3. Automation and Efficiency – Automated simulation and result checking reduce manual effort, eliminate human error, and accelerate the verification process. 
4. Seamless Collaboration  – Engineers, testers, and compliance teams work from a unified, traceable source of truth, improving communication and decision-making. 

Strategic Value for Aerospace and Defense Organizations 

For decision-makers, the message is clear: integrating verification into your digital thread is not just a technical enhancement, it’s a business imperative. The return on investment comes from: 

• Faster, more confident delivery of complex systems 

• Reduced program risk and cost overruns 

• Enhanced ability to demonstrate compliance and quality to customers and regulators 

As you advance your digital engineering initiatives, ensure that verification is a first-class citizen in your digital thread strategy. Doing so will unlock the full value of traceability, positioning your organization for long-term success in a rapidly evolving industry. 

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Mike Anthony is an Aerospace Engineer who specializes in systems and controls, and has extensive experience in GNC and systems engineering working with Aerospace & Defense companies for 25 years.