Abstract: A system for processing multiple forms, wherein each form comprises at least one data input field and each data input field is configured to enable a respondent to enter input data into the form, the system configured to process a multi-character expression comprising: one or more domain characters representing a domain; and one or more field characters representing at least one data input field of the form, wherein the one or more domain characters is indicative of variations in one or more of: data input fields in the form; discrete values of possible data inputs; and validation logic associated with the at least one data input field.