Enhancing UML Connectors with Behavioral Specifications

In this study, we propose enhancing UML connectors with additional behaviors. Associated behaviors add capability to specify exogenous coordination and capability to resolve ambiguities when n-ary connectors are used to coordinate more than two entities. We identify the challenges specific to specification of behaviors for connectors and we propose solutions for them. We argue with examples that this kind of behavioral specification suits well for reusability of both connected elements and the connectors.