Abstract: A method and system of validating the integrity of a multi-file computer aided design database is disclosed. In certain embodiments the method includes providing a database containing multiple objects including multiple subordinate computer aided design objects, each subordinate object defining one or more components for use in a multi-component assembly; and multiple dominant objects, each dominant object defining a multi-component assembly, said dominant objects requiring the use of one or more subordinate objects. The integrity of each of the identified dominant objects is validated to determine whether any changes in the subordinate objects have caused defects in dominant objects.