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Adding Functional Elements to Online Content : Variables
Variables
A variable serves as a placeholder for information that is liable to change. It would be efficient to set up variables for any information whose value fluctuates. By setting up variables in the source document, it allows you to have global control over the values contained within those variables.
For example, a date can be set up as a variable; if the date ever needs to be modified, it would be possible to make the change from a single location instead of having to search for and replace all the instances of that date.
