2. A computer-implemented method according to claim 1 , further comprising: receiving, via execution of program code by the processor, a selection made by a user of a third business object, the third business object relating to a business process and being defined by metadata to include one or more node elements; receiving, via execution of program code by the processor, a selection made by the user of a fourth business object, the fourth business object relating to a business process and being defined by metadata to include one or more node elements; receiving, via execution of program code by the processor, a selection made by the user of one or more of the node elements of the fourth business object; receiving, via execution of program code by the processor, a second one or more query parameters specified by the user; receiving, via execution of program code by the processor, a second mapping made by the user of a respective node element of the third business object to each of the selected one or more node elements of the fourth business object and to each of the second one or more query parameters; receiving, via execution of program code by the processor, a second script specified by the user and executable to evaluate a second condition associated with the third business object; generating second runtime objects based on the second mapping; and executing the program to use the second runtime objects and the second script to evaluate the second condition and to create a second message mapping the respective node element of the third business object to each of the selected one or more node elements of the fourth business object and to each of the second one or more query parameters.
2. A computer-implemented method according to claim 1 , further comprising: receiving, via execution of program code by the processor, a selection made by a user of a third business object, the third business object relating to a business process and being defined by metadata to include one or more node elements; receiving, via execution of program code by the processor, a selection made by the user of a fourth business object, the fourth business object relating to a business process and being defined by metadata to include one or more node elements; receiving, via execution of program code by the processor, a selection made by the user of one or more of the node elements of the fourth business object; receiving, via execution of program code by the processor, a second one or more query parameters specified by the user; receiving, via execution of program code by the processor, a second mapping made by the user of a respective node element of the third business object to each of the selected one or more node elements of the fourth business object and to each of the second one or more query parameters; receiving, via execution of program code by the processor, a second script specified by the user and executable to evaluate a second condition associated with the third business object; generating second runtime objects based on the second mapping; and executing the program to use the second runtime objects and the second script to evaluate the second condition and to create a second message mapping the respective node element of the third business object to each of the selected one or more node elements of the fourth business object and to each of the second one or more query parameters. 3. A computer-implemented method according to claim 2 , wherein the fourth business object are associated with a first deployment unit, wherein the third business object are associated with a second deployment unit, and the method further comprising: asynchronously providing, via execution of program code by the processor, the message to the second deployment unit; modifying, via execution of program code by the processor, the second business object based on the message; asynchronously providing, via execution of program code by the processor, the second message to the first deployment unit; and modifying, via execution of program code by the processor, the fourth business object based on the message.