WebSphere Portlet Factory is an IBM product that was originally developed by Bowstreet until it was acquired by IBM in December 2005. It is a development environment for building portal and web applications. It is also called as IBM WPF(Websphere Portlet factory). Recently they have changed the name of Websphere Portlet Factory to Web Experience factory as the new features are able to create Static web applications and not only dynamic Web applications. The latest release is Web Experience Factory 7.0.1