An email address with an attribute, used to "qualify" an email as personal, work, or permanent. Identifies a facility. The kind of facility. The naming system within which the name is unique. For example, API or NPD. If the facility is defined and instantiated within the context of a WITSML server, this is a pointer to the uid value of that object instance. Identifies a selling entity. The kind of facility. The naming system within which the name is unique. For example, API or NPD. If the facility is defined and instantiated within the context of a WITSML server, this is a pointer to the uid value of that object instance. A phone number with two attributes, used to "type" and "qualify" a phone number. The type would carry information such as fax, modem, voice, and the qualifier would carry information such as home or office. The kind of phone such as voice or fax. Indicates whether the number is personal, business or both. The phone number extension.