A graphic program configuration system is described that allows a user to create complete computer programs. In particular, the present invention improves on the prior art by providing a system and process that permits a subprogram to have an arbitrary number of outlets that may be defined at program configuration time by stimulating the subprogram to create new outlets that facilitate connecting the subprogram to other subprograms. In particular embodiments of the invention the names for the new outlets may either a) be obtained by virtue of the attempted connection of a subprogram to other subprograms or b) be provided direct entry of the outlet name by a user of the program configuration system, e.g., by typing the outlet names on the keyboard. Additionally, in accordance with an aspect of the invention, outlets can be augmented to have one or more constraining parameters that can be used to ensure that only appropriate relationships are established by connections. Such constraining parameters include: a) number of connections allowed, b) types of connections allowed, c) destination object class, and d) destination object operations required. Thus, a non-programmer or a person with only rudimentary programming skills can configure a collection of one or more subprograms into a complete computer program.