WASP (Web Application Structure for PHP5) is a multi-tier web application framework built on object oriented PHP5. The framework is a simplified Model-View-Controller architecture. The controller is built by adding content "Chunks" to "UIModules". The model portion of the framework wraps PEAR DB_DataObjects in a business object layer. The view portion currently makes use of PEAR Html_Template_Flexy, but can be easily reimplemented using different template managers (or none at all).