Documentation refers to the documents supporting a case, claim, application or report. For example, one might say, 'You have completed the application, but the documentation is incomplete'.
The term 'documentation' has a few uses: 1: program listings or technical manuals describing the operation and use of programs; 2: confirmation that some fact or statement is true through the use of...
Technical documentation describe specification and requirements for the product to function as designed. User documentation describe how to operate the product.