Descriptions can be used to add explanations or comments to datafields.
The user is free to include any description, comment or explanation in the description field so that the function of a description is completely up to the user (or the policy of the organisation).
For example in more complex clauses or concepts with many datafields, descriptions could be used to explain the exact role a datafield plays in a certain clause, document or library. This will make it much easier for any future user editing the datafield to understand its use, thereby avoiding the situation where any changes are made to the datafield that e.g. ‘break’ a clause (for example by removing predefines).