A method for inputting graphical data into a graphical input field includes initiating an input of graphical data via a graphical input device into the graphical input field, and actuating a voice-form module in response to initiating the input of graphical data. Actuating the voice-form module includes actuating a first voice-form function for capturing an initial value corresponding to the graphical input field and actuating a second voice-form function based upon a final value corresponding to the graphical input field. The first voice-form function initiates a timing function for polling the graphical input field at a predefined interval to determine subsequent values corresponding to the graphical input field in order to determine whether the input of graphical data into the graphical input field is complete. The second voice-form function determines whether the final value corresponding to the graphical input field is contained within a predefined set of valid values.