Systems and methods for routing messages between applications in a network are disclosed. Messages are routed from a sending application to one or more receiving applications according to one or more routing rules. Each routing rule is used for determining the one or more receiving applications, and is associated with at least one routing object. The routing object is configured to associate the routing rule to the message based on content of the message. The routing objects are stored in a repository of design-time descriptions of the applications. The routing rules are stored in a directory of runtime descriptions of applications in the runtime landscape, and are accessed by a runtime engine for executing the routing.