
Engineering Services
Verification and Validation
Complex engineering systems must do more than function as designed. They must demonstrate that they meet defined requirements, perform reliably under expected operating conditions, and are ready for qualification, production, and deployment.
Reliable systems depend on more than robust design, they require rigorous verification and validation.
Verification & Validation for Reliable Systems
STL Engineering provides verification and validation services for rugged electronic and electromechanical systems, working alongside our mechanical, electrical, software, firmware, and project engineering teams to evaluate complete products throughout development. By incorporating verification and validation throughout the engineering lifecycle, we help identify issues early, confirm design performance, and provide objective evidence that systems meet their intended requirements. This integrated approach helps reduce development risk while supporting reliable, maintainable, and production-ready products.

Verification Planning & Requirements
Defining How Performance Will
Be Demonstrated
Effective verification begins with clear requirements and a defined approach for demonstrating compliance. STL Engineering works with customers and engineering teams to establish verification strategies that connect product requirements to measurable test and analysis activities. Our engineers help ensure requirements are traceable, testable, and appropriately addressed throughout the development process.
Typical capabilities include:
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Verification planning
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Requirements analysis
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Requirements traceability
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Verification method development
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Test procedure development
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Acceptance criteria
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Verification documentation
Design verification provides objective evidence that a product or system meets its specified technical requirements. STL Engineering supports verification activities across mechanical, electrical, software, firmware, and integrated system functions. Testing and analysis are selected based on the requirements being evaluated, helping ensure critical product characteristics are demonstrated before qualification or deployment.
Typical capabilities include:
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Functional verification
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Performance testing
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Mechanical verification
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Electrical verification
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Software and firmware verification
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Test execution and data collection
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Verification reporting

Design Verification
Requirement Compliance

System Validation
Confirming the System Performs as Intended
Validation evaluates whether the completed system satisfies its intended application and operational requirements. STL Engineering supports system-level validation to confirm that integrated products perform as expected in representative use conditions. Our engineers consider the complete system, including hardware, software, mechanical interfaces, operating conditions, and user requirements, to help ensure the final product is fit for its intended purpose.
Typical capabilities include:
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System validation
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Operational testing
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Performance evaluation
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Environmental validation
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User and application requirements
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End-to-end system testing
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Validation reporting
Rugged products may need to operate reliably under demanding environmental conditions throughout their service life. STL Engineering supports verification and validation activities associated with environmental and qualification requirements, helping identify potential weaknesses before products move into production or deployment. Our engineers coordinate testing and analysis with the broader development program to ensure results are understood and incorporated into the final design.
Typical capabilities include:
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Environmental testing support
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Temperature testing
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Shock and vibration testing
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Ingress and environmental protection testing
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Reliability evaluation
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Qualification support
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Test result analysis

Environmental & Qualification Testing
Preparing Products for
Demanding Conditions

Integrated System Verification
Hardware and Software Working Together
Modern products rely on the interaction of mechanical, electrical, software, and firmware systems. Verifying each element independently is important, but complete system performance must also be demonstrated at the integrated level. STL Engineering supports system integration and verification throughout development, helping identify interface issues, confirm system behaviour, and ensure individual components work together as intended.
Typical capabilities include:
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Hardware/software integration testing
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System-level functional testing
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Interface verification
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System debugging
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Performance optimization
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Regression testing
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Verification and validation reporting
Verification & Validation for Rugged Electronics
Our verification and validation services support applications across:
Build With Confidence
Reliable products are built through disciplined engineering and demonstrated through rigorous verification and validation. Whether you're developing a new product, preparing for qualification, investigating system performance, or moving an existing design toward production, STL Engineering can help plan, execute, and document verification and validation activities throughout the product lifecycle.
1-800-488-6212