Test and Verification

Test and verification

As products become ever more complex and the number of requirements that must be met rises, testing and verification grow all the more important. For a number of years, verification to assure the design of a product has been a profession in its own right. Methods and tools to make testing and verification work more efficient and quality-assured are being developed all the time. Many branches have legal requirements and standards that place specific demands on how the work is conducted.

From cradle to grave

In our development projects we start thinking about and preparing for how a project will be tested already before and during the development work. This is to guarantee that all demands are met, from functional and process-orientated to regulatory and compatibility requirements. To ensure that we have a complete and accurate requirement specification, we always work according to the same well-proven development process. This can involve everything from ensuring that a requirement is able to be verified, to checking that other requirements are not contradictory. A specific test method, known as a Design Verification Method (DVM), is defined for each requirement with the aim of showing how the requirement will be tested and confirming that it is actually implemented. The results are documented in various verification reports.

The verification methods used are customized, depending on how a product will be produced, and in what volume. Sometimes, much of the work is performed manually, and in other cases some degree of automated test equipment is developed. Together Tech are often responsible for the whole journey from development, manufacture, verification, and delivery of complete test equipment and systems.

Broad test rig experience

Because the testing in our customers’ industries is often repetitive and requires many tests during a short period, we develop and work with various types of test rigs. Some examples are HIL, MIL, and SIL rigs, which are based on Matlab, Simulink, and Stateflow – and we often have on-going assignments involving testing with these types of rig.

We develop everything from small and simple test equipment, which is used for verification and trouble-shooting in the development phase, to complete and automatic tests systems, which are used in production. They can be manual, pneumatic, electrical, semiautomatic, or fully automatic test systems built on modules that can be reused and have smart contact interfaces. Equipment that we have produced is now all around the world on site at large electronics manufacturers that have broad production and are keen to have equipment with great reliability and flexibility.

For the telecom industry, we have developed everything from simpler assembly equipment, such as ESD-approved disassembly tools for battery removal, to complete, automatic, RF-sealed test fixtures for function testing and calibration. We have been able to reduce the number of fixtures that are needed through many innovative module solutions, and flexible platforms with adjustment for different loads.

Björn Aiff
Business Unit Manager Test & Verification
Peter Warlich
Business Unit Manager Electronics and Software Development