How will each data item be verified for accuracy, timeliness, and completeness?
The IRFOF applet is a public facing applet whose only users are taxpayers, and only provides these users with read-only access to information pertaining to the status of their tax refund. The only input into the IRFOF applet occurs during authentication where the applet verifies a combination of three (3) shared secrets with the taxpayer. Additionally, if a taxpayer has made a mistake, the applet asks the taxpayer to verify their entered data and also asks the taxpayer to provide answers to a few additional questions. The IRFOF applet compares the data entered by the user against the IDRS RFIF. If the data are accurate, complete, and valid, the applet provides the taxpayer with read-only access to their refund status. If any of the data items are inaccurate, incomplete, or invalid, the user will be presented with a validation message indicating that there is a problem with the data that has been provided. Specifically, the IRFOF applet restricts user input through the use of JavaScript
