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| 2 || Enters a new nickname in the nickname field and clicks the "Submit" button || Validates the data entered against predefined rules, display an error message if nickname entered not valid ||
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| End of Loop || Until the nickname enters is valid || Change user nickname in database, displays a success message on screen, still displays the "user SetttingsUser Settings" page || bu_id (bbb_user)<br />bu_nick (bbb_user)
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| 3 || Clicks on the link labeled "Back", usually located on the left panel of the webpage || Displays the site main page (calender.jsp) ||