Any appliation for testing...you need to validate the functionality against SRS. So what ever your SRS talks about the account creation functionality all those details need to be captured for creating application.
In general if UserName and Password. Username should be a edit box and Password field should encrypt the password etc., because of secutity reasons the password should be displayed like Username
If you want a high quality software system, you must ensure each of its parts is of high quality. by Watts S. Humphrey