What is a device under test? Definition
A device under test (also known as device under testing, DUT) refers to any electronic or technological device that is undergoing testing. This can include microcontrollers, microprocessors, board support packages, web services, middleware applications, among others.
The primary aim of testing a DUT is to assess its performance, functionality, reliability, and compatibility with other systems.
Importance of device testing
Although discussed this other article, the importance of testing at every stage of device development and maintenance cannot be overstated.
When defining your testing strategy, you should identify your device under test, as well as the essential tests to conduct. This will enable you to:
- Evaluate performance: Ensures your device meets the required performance standards of the organization and/or industry.
- Validate functionality: Verifies that the device under testing operates as intended for the end user, and according to the defined specifications.
- Assess reliability: Ensures the device’s longevity, which is particularly important for devices expected to remain on the market for 10-15 years.
- Test compatibility: Confirms the device’s interoperability with other systems and devices.
The place of the device under test in your testing strategy & tooling
DUTs are typically tested using automated tools like Pluma. These tools place the device under test at the center of the test plans, performing various tests – ranging from minimally to highly intrusive – to check predefined testing scenarios.
Standard tests include component testing, integration testing, and system testing, all based on a set testing strategy.
Proper testing and analysis of a product help device makers identify issues, improve design, and ensure high-quality performance, providing reliable experiences for end-users.
