The project, extending over 14 years with a dedicated team of 22 developers, successfully integrated over 1.1 million lines of C code, along with substantial Java and C++ components. As a result of our collaboration, the customer's market share surged, commanding 8 out of 10 sales in ASN.1 solutions. The new additions to their product line, including XML/XSD solutions and an ASN.1 IDE, significantly enhanced their market offerings. The solutions not only met high-performance standards but also were certified according to the international aviation standard DO-178B, Level C, ensuring reliability and safety.