- u -

• UI_HTML_CHECKBOX : base_setting
• UI_HTML_DROPDOWN : base_setting
• UI_HTML_RADIOBUTTON : base_setting
• UI_HTML_TEXTFIELD : base_setting
• UI_NONE : base_setting
• UNDECIPHERABLE_TLD : Zend_Validate_Hostname
• Underline : cc_qti_values
• UNIONPAY : Zend_Validate_CreditCard
• UNITGRADED : qtype_numerical
• UNITGRADEDOUTOFMARK : qtype_numerical
• UNITGRADEDOUTOFMAX : qtype_numerical
• UNITINPUT : qtype_numerical
• UNITNONE : qtype_numerical
• UNITOPTIONAL : qtype_numerical
• UNITRADIO : qtype_numerical
• UNITSELECT : qtype_numerical
• UNKNOWN : technical_role , Zend_Validate_File_Upload
• UNKNOWN_CONTENT_LENGTH : Zend_Amf_Constants
• UNKNOWN_ERROR : Zend_Gdata_Gapps_Error
• UNKNOWN_OPERATION : Zend_Amf_Value_Messaging_CommandMessage
• UNKNOWN_TLD : Zend_Validate_Hostname
• unlimited : cc_qti_values
• UNSUSBSCRIBE_OPERATION : Zend_Amf_Value_Messaging_CommandMessage
• UPLOAD_LOCATION : google_picasa
• UPLOADS_URI_SUFFIX : Zend_Gdata_YouTube
• uri : cc_qti_tags
• URI_BASE : Zend_Service_Flickr
• URL_APPEND_HEADER : Zend_Amf_Constants
• URL_CLOUD_BLOB : Zend_Service_WindowsAzure_Storage
• URL_CLOUD_QUEUE : Zend_Service_WindowsAzure_Storage
• URL_CLOUD_TABLE : Zend_Service_WindowsAzure_Storage
• URL_DEV_BLOB : Zend_Service_WindowsAzure_Storage
• URL_DEV_QUEUE : Zend_Service_WindowsAzure_Storage
• URL_DEV_TABLE : Zend_Service_WindowsAzure_Storage
• US_ENGLISH : language_lom
• US_OFFSET : Net_GeoIP
• USE_RAW_DATA : question_attempt
• USER_CONTACTS_REL : Zend_Gdata_YouTube
• USER_DELETED_RECENTLY : Zend_Gdata_Gapps_Error
• USER_FAVORITES_REL : Zend_Gdata_YouTube
• USER_PATH : Zend_Gdata_Photos
• USER_PLAYLISTS_REL : Zend_Gdata_YouTube
• USER_PREF_NAME : google_docs , google_picasa
• USER_SUBSCRIPTIONS_REL : Zend_Gdata_YouTube
• USER_SUSPENDED : Zend_Gdata_Gapps_Error
• USER_UPLOADS_REL : Zend_Gdata_YouTube
• USER_URI : Zend_Gdata_YouTube
• USERTYPE_AUTHOR : workshop_random_allocator
• USERTYPE_REVIEWER : workshop_random_allocator