Your TSO/E user ID is a group of characters that identifies who you are. It is unique to you and often is your name, your initials, your department number, or any valid combination of characters defined by your installation. It can be no longer than 7 characters and can contain numeric (0 to 9) and alphabetic (A to Z) characters, but must begin with an alphabetic character. For the purpose of examples in this document, we will use yourid as your user ID. If you don't have a TSO/E user ID at this time, have your TSO/E administrator assign one to you.