Zend Framework 2 is an open-source framework for developing web applications, using object-oriented code. The components in the standard library form a powerful an extensible framework when combined, offering a robust, high performance MVC implementation. It's easily extensible, adapting to your needs, with a modular base so you can use building blocks in combination with other applications or frameworks. Using the ZendService you can implement client libraries to access the most popular web services available. As Zend is a collection of classes, you can just load the components you need, to take advantage of the components as individual libraries, instead of the framework as a whole, cutting down on unnecessary project bloat. With no model implementation you are free to implement the framework and components in whatever way you need, free of predefined restraints.