A system and methodology for controlling structural type integration to major fittings requires creating a geometrical set of objects identified here as basic starting geometry which consist of external references and relationships to a main component structure. Structural interface detail characteristics and hardware components are identified that make up a major fitting integration connection between the main component structure and a second component structure. Parametric sets and associated geometrical sets containing sketches and geometry objects are identified and created, the parametric sets and associated geometrical sets being associated to a particular hardware component used in the integration connection between the main component structure and the second component structure and used to defined and control the integration connection between the main component structure and the second component structure with respect to fit, form and function. The parameters and geometry objects are published for review by all companies involved in the integration.