1. A method for making a call to a service having a business object, the method comprising: formatting a message based on a language, the language defining an interaction with the business object at the service, the language further defining an association between the business object and at least one business object node, the association, defined by the message formatted based on the language, enabling, at the service, an instantiation of the business object including the at least one business object node, the language further defining a quantity of the at least one business object node, one or more names for the at least one business object node, a structure of the at least one business object node, and one or more default queries of the at least one business object node; and calling the service using the formatted message, such that the formatted message instantiates the business object and the at least one business object node.