Non-Functional Testing

Make every release reliable, secure, and ready for peak pressure

Even if every feature meets its functional requirements, your users still won’t tolerate slow, unstable, or unpredictable systems. 

Sixsentix Non-Functional Testing services identify the bottlenecks, vulnerabilities, and inefficiencies that fall outside the scope of functional testing. We ensure that your software performs under pressure, scales with demand, and meets the expectations of real-world use. And if there are any issues, we’ll catch them before your users do. 

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Why non-functional testing matters today

Modern software systems are often complex, distributed, and constantly evolving. As businesses move faster, non-functional issues can delay releases and damage user trust. 

Many companies today struggle with: 

Slow performance under peak load

Unclear capacity limits and unpredictable scaling behavior

Security flaws not covered by functional test scenarios

Downtime risks during deployments or peak usage

Resource overuse and hidden infrastructure inefficiencies

Inconsistent behavior across devices or regions

When neglected, these risks translate to customer churn, financial penaltiesand reputational harm.

Key areas we address with
Non-Functional Testing

We have structured our non-functional testing around your key business risks and specific system landscape. Each of these categories deals with a unique quality gap: 

Performance testing

Validate your system’s speed, responsiveness, and scalability under load.

Avoid slowdowns that frustrate end users and can severely damage user experience.

Load and stress testing

Understand system limits, breaking points, and stability under extreme conditions.

Prevent crashes during usage spikes or unexpected events. 

Security testing

Detect vulnerabilities in code, integrations, and data handling. 

Protect sensitive information and meet regulatory requirements. 

Usability and accessibility testing

Uncover issues that affect real user interaction and legal compliance.

Ensure accessibility and user satisfaction. 

Key areas we address with
Non-Functional Testing

We have structured our non-functional testing around your key business risks and specific system landscape. Each of these categories deals with a unique quality gap: 

Performance testing

Validate your system’s speed, responsiveness, and scalability under load.

Avoid slowdowns that frustrate end users and can severely damage user experience.

Load and stress testing

Understand system limits, breaking points, and stability under extreme conditions.

Prevent crashes during usage spikes or unexpected events. 

Security testing

Detect vulnerabilities in code, integrations, and data handling. 

Protect sensitive information and meet regulatory requirements. 

Usability and accessibility testing

Uncover issues that affect real user interaction and legal compliance.

Ensure accessibility and user satisfaction. 

Benefits of our Non-Functional
Testing service

Faster, safer releases

Detect performance, security, and reliability risks early, reducing the chance of last-minute delays or production incidents.

Improved user experience and loyalty

Ensure your software is fast, scalable, and stable under real-world conditions, helping you build trust and retain customers.

Reduced operational costs

Uncover hidden infrastructure inefficiencies and prevent costly downtime before they impact your business.

Better compliance and risk management

Validate critical non-functional requirements such as security, data protection, and availability to meet industry and regulatory standards.

Stronger alignment between IT performance and business goals

Gain clear insights that connect technical performance to business outcomes, ensuring IT investments deliver real value.

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Benefits of our Non-Functional
Testing service

Faster, safer releases

Improved user experience and loyalty

Reduced operational costs

Detect performance, security, and reliability risks early, reducing the chance of last-minute delays or production incidents.

Detect performance, security, and reliability risks early, reducing the chance of last-minute delays or production incidents.

Ensure your software is fast, scalable, and stable under real-world conditions, helping you build trust and retain customers.

Better compliance and
risk management

Validate critical non-functional requirements such as security, data protection, and availability to meet industry and regulatory standards.

Stronger alignment between IT performance and business goals

Gain clear insights that connect technical performance to business outcomes, ensuring IT investments deliver real value.

benefit image

Part of a comprehensive QA offering

Since our services are designed to connect seamlessly, the Non-Functional Testing service aligns naturally with other services we offer, allowing a unified approach when you need broader coverage or have specialized demands. This ensures consistent quality gates, shared insights, and fewer surprises late in the delivery cycle.

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