A method and apparatus model multiple relationship dimensions among a set of entities is presented. A computer system identifies a configuration for the structure. The configuration comprises metadata about supported relationship aspects for the set of entities within a structure context. The computer system identifies aspects for an entity according to the structure context. The entity aspects comprise metadata about relationships for the entity within the structure context. The computer system compares the entity aspects to the configuration for the structure to determine a relationship of the entity to the set of entities. The computer system dynamically attaches the entity to the set of entities according to the determined relationship to form the structure.