In that paper an innovative way of dealing with the generation of residuals for fault-detection and isolation based on structural information is presented. The developed technique considers implementation issues therefore it has a more realistic point of view compared to classical structural approaches. First practical issues that can be encountered such as computational complexity or implementation considerations are introduced. Then the way of incorporating them to the existing structural analysis framework is explained. Finally, we show how the stable marriage problem can be successfully adapted in order to choose the most suited matching that leads to residual computational sequences. The algorithm has been implemented and tested using a real life benchmark model: the Damadics valve.