4. How do you validate embedded software?

4.1 Unit testing of software components

The first validation step is to check that the coding we've done complies with the detailed design requirements.

This step must be carried out before integration, which consists of connecting all the software modules together according to the defined architecture, and compiling the resulting software.

The set of tests performed to validate the requirements of the detailed design can be automated for later reuse (coding evolution in the event of design changes).

When a coding non-conformity is detected, the coding error must be corrected and the entire set of tests repeated. Once all software modules are fully compliant with requirements, they can be integrated into the...