Abstract: A modular application collaborator for providing inter-operability between applications including a plurality of connectors for communicating with a like plurality of applications and an interchange server. The interchange server includes an application collaboration module and a service module. The service module transfers messages between connectors and the application collaboration module. The application collaboration module defining the inter-operability between two or more applications and includes a trigger and a transaction responsive to the trigger. The trigger is activated upon receipt of data from one or more connectors resulting in the transaction delivering data to one or more connectors for transfer to an associated application.