Abstract. This paper proposes a modified, genomial, version of function - architecture co-design rnethod so that wider cvaluation of architecturcs from both functional arrd structural point of view can bc pcrformed. The topological rnodellirrg technique is used to creatc thc Computatiorr Irrdependent Modcl that is abscnt in thc original method. A case study has been performcd that clarifics thc kcy idcas of this approach.