which tag 182 applies tag 184 shows that the originator has selected the text between tag 184 and tag 186 to not be viewable by the engineering departments the attribute names and values such as u201c dept u201d an attribute and u201c eng u201d a variable can be defined when the features are implemented in an email system or other application in such a case they would be defined by a software manufacturer alternatively a system administrator can define the variables at a time of setting up or configuring an email system with section access setting ability another possibility is to allow users of the system to define attribute values and other parameters of the system the text between tags 188 and 190 includes a hyperlink that has an indicator which is only viewable and operable by a recipient named u201c lakshmi dutt u201d as defined by the u201c linkable u201d tag the hyperlink is to an external document such as a document on the company network or the internet so that recipients other than lakshmi dutt will not be able to access the hyperlink or external document or even to know that the word u201c marketing u201d is associated with a hyperlink text between tags 194 and 200 is only viewable by a group of recipients identified as belonging to a u201c special product dev team.