Does Radius Topology™ impose any limitations on data models?
No, data models can be completely flexible, for example you may require one table for all feature types, or one table for each feature type, or a combination of both, or arbitrary groupings of features in a range of tables. Both tables and views can be used, and the geometries can either be from a stored column value, or returned from a function. In addition, features from any or all of these tables can interact in one or many independent topological layers.