The international avionics standard for safety-critical software, RTCA/DO-178B Software Considerations in Airborne Systems and Equipment Certification Requirements, imposes very strict Dynamic Coverage Analysis requirements. As the implementation of DO-178B becomes more widespread it is essential that the choice of tool is based on known expertise and compatability with market requirements for tenders. The Solutionwe offfer around our DOORS Requirements tools in combination with the LDRA test- and certification tools are THE reference in the market that has assisted both airborne and ground based systems to meet the DO-178B standard.