Mobile POS Hardware & Application Testing

Quality assurance for hardware terminal and mobile app integration.

About project

Solution

Manual Testing, Functional Testing, Compatibility Testing, Exploratory Testing

Technologies

Android, iOS, SDK Compatibility, Firmware Updates

Country

UK, Europe, Worldwide

Industry

Technology

Project Duration

Since February 2021

Team Composition

Testing & QA – 2

Challenge

The client needed comprehensive testing of their mobile POS system before global expansion. Our main task was validating the hardware terminal’s integration with their mobile application, ensuring robust performance across Europe for millions of potential users.

Core challenges included verifying the hardware-software connection reliability, ensuring an intuitive payment processing flow, and maintaining consistent performance across various devices. The system needed to work flawlessly through transaction confirmation from the initial hardware connection.

Solutions

​​We assigned a dedicated Senior QA Engineer to integrate with the client’s team. This engineer’s responsibilities included:

  • Process setup. Established QA processes from the ground up to streamline testing.
  • Daily QA activities. Performed routine testing and maintenance.
  • Client collaboration. Active participation in meetings and feedback loops with the client’s technical team.
  • Documentation. Provided documentation, including test plans, scenarios, traceability matrices, and bug reports.

Project-specific testing

  • SDK log monitoring and analysis.
  • Firmware testing, including OTA updates.
  • Compatibility testing across 12 devices, covering iOS, Android, iPad mini, and iPad Pro.

Technologies

We applied automation and cross-browser testing tools to ensure the Skype Click to Call plugin’s performance across platforms. Focus areas included stability, efficient test management, and localization for multi-language support.

  • TestRail
  • Selenium
  • Slack
  • Browser extensions

Types of testing

Manual testing

Direct, hands-on testing across device variations.

Functional testing

Verification of each component’s expected performance.

Compatibility testing

Ensured functionality across various devices.

Exploratory testing

Used to discover critical bugs via real-world scenarios.

UI/UX testing

Enhanced ease of use for seamless user experience.

Smoke testing

Quick checks on major features to confirm functionality.

Results

Our QA efforts resulted in significant improvements for the client’s mobile banking POS system:

  • Ensured stable performance of the hardware-software integration
  • Identified and eliminated potential user experience issues
  • Verified seamless interconnection between the hardware device and POS software app
  • Contributed to the ongoing development and improvement of the system

Specific, measurable outcomes include:

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App rating increased from 4.2 to 4.7 out of 5

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87%

boost in mobile conversions

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672

bug reports filed, with over 80% fixed

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Comprehensive testing across 8 Android and 4 iOS devices

Ready to ensure your fintech solution meets global quality standards?

Let our QA experts help!

    Bruce Mason

    Delivery Director

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