A method for converting interface definitions within a source code program into an intermediate format includes identifying with a computer system objects in a source code program and interfaces in the objects. Interface properties are determined including an internal interface for producing a link from an object with interfaces located outside the source code program, and an input and/or output interface. Links are identified including an internal link between an interface and an input interface between identified objects, and an external link of an external interface. An intermediate format table is created having rows in a dimension, second rows in another dimension, and cells disposed at intersections thereof. Designation are assigned for each identified object to rows in the first and for each identified link to rows in the second. Designations for associated interfaces are inserted in the cells.