Reaction is basically an extended MVC: Domain Model DBIx::Class::Schema, MyApp::Foo, MyApp::Bar, etc. Interface Model InterfaceModel::DBIC::Schema, InterfaceModel::Action, MyApp::InterfaceModel::Foo classes. Controller Mediation and navigation. ViewPort Event handling encapsulation. Widget View logic. Renderer MyApp::View:: classes, renders viewports. WWW: http://search.cpan.org/dist/Reaction/