1. A method of storing data associated with an electronic form, wherein the electronic form interacts with a business object, the method comprising: retrieving a first data field from a first data source, the first data source having a first protocol; retrieving a second data field from a second data source, the second data source having a second protocol, the second protocol being different than the first protocol; providing a graphical user interface where the first data field and the second data field are to be combined in the electronic form; allowing a third data field to be added to the form through the graphical user interface, wherein adding the third data field automatically changes a definition of the business object; and storing data indicative of the third field in a third data source, the third data source having a third protocol, the third protocol being different than the first protocol, the third protocol being different than the second protocol, wherein the first, second, and third data fields are part of a single business object.