
Originally Posted by
Aristocrat
If he only wants a basic website that provides information, and can possibly provide functionality for users to send an email to his address, (a feedback mechanism), then all you need is notepad.
Notepad can be used to write html, CSS, and javascript, with which almost anything can be done.
If he wants something more complex, such as a booking system, then you will need a backend database.
It all comes down to functionality, most things can be done without a backend (short of a forum or store catalogue)...but after a point things get decidely more complex.