File management system

This project is related to web site development, the basic features/requirements are: 1. We will be running it on the Cloud 2. There will be some trivial web services running on the site. 3. This is a kind of content management system, in which users will be assigned different privileges. 4. There will be three levels of users: Admin (can do everything), Normal User(Can upload files), clients(they can only interact with web services after authenticating). 5. Admin can add users and can manage all users login details 6. Normal user will have restricted access, and he can upload files based on the group of clients selected. 7. we are planning to use php as programming language and WSDL a WS descriptor. 8. On the back end simple SQL database is fine. 9. The work will also involve simple Database design.