Slicing Web application based on hyper graph

Program slicing is an available method that is widely used in program understanding, analyzing, debugging, testing, maintaining. There are many solutions for slicing procedural program and object-oriented program. But traditional slicing method usually based on PDG and SDG that is not suitable to a Web application because of Web´s special characteristics. This paper suggests a kind of slicing method that use hyper graph to define dependency of elements named PDSG (program dependence hyper graph). PDSG can describe dependence of the Web elements better than PDG. This method also makes the slicing algorithm simpler and the slice captured is integrated in semantics.