A system and method generates a property graph data model to represent a system architecture. The model includes a plurality of vertices of different vertex types representing different design dimensions of the system architecture, a plurality of compositional edges that connect vertices of a same vertex type to represent hierarchical directed-composition and hierarchical directed-decomposition of the connected vertices with respect to one another, and a plurality of connecting edges that connected vertices of different vertex types to represent connections between different elements of the different design dimensions. Information about the different design dimensions is extracted from one or more source databases to generate the property graph data model.