Rapyd is a PHP5 minimalistic framework made to build applications based on CRUD (Create, Read, Update, Delete) pattern. It provides a set of components / classes that can help you to develop web applications "rapidly".

Its syntax is simple, oriented to build simple Data GUI in few line of code.
It's tiny (≈50 files) and inobtrusive (no conflicts, no notices, etc..).

Backends, Intranets and Administrative Areas need an application framework to manage forms, filters, data grids.
Rapyd is a lightweight solution.
You can use it as library, but it's also a complete mvc framework, so it can be become a standard for your application development.