According to DO-178B, section 6.4.1, an excellent test environment includes the software loaded into the target computer … This is possible with Tessy: Tessy allows to execute tests on the target computer (and also on the host).

Tessy can be used for low-level testing as required by DO-178B. The low-level requirements can be used as base for the low-level test case specification. This is eased by using the Classification Tree Method resp. the Classification Tree Editor (CTE), which is part of Tessy. Tessy can determine software structural coverage, both branch/decision coverage and MC/DC. The Classification Tree Method is useful for requirements-based low-level testing. Tessy Tool Qualification Information is available on request.

Tessy was used in DO-178B projects up to level A.