We propose an efficient technique for slicing web applications. First we construct the system dependence graph for a web application and then perform backward slicing on that graph corresponding to a given slicing criterion. We use Java server pages for the web application.

Program slicing revealed a useful way to limit the search of software defects during debugging and to better understand the decomposition of the application into computations. The web application is very widely used for spreading business throughout the world. To meet the desire of the customers, web applications should have more quality and robustness. Slicing, in the ?eld of web application, helps disclosing relevant information and understanding the internal system structure. This in turn helps in debugging, testing and in improving the program comprehensibility. The system dependence graph is an appropriate data structure for slice computation, in that it explicitly represents all dependencies that have to be taken into account in slice determination. We have extended the system dependence graph to Web-Application Dependence Graph (WADG). We have developed a partial tool for automatic generation of the WADG and computation of slices. In our literature survey, we found that most of the automatic graph generation tools are byte-code based. But, our tool uses the dependency analysis from the source code of the given program. We have presented three case studies by taking open source web programs and applying our techniques and slicing algorithm. We have found that the slices computed is correct and precise, which will be help full for program debugging and testing. Construction of the system dependence graph for Web applications is complicated by the presence of dynamic code. In fact, a Web application builds the HTML code to be transmitted to the browser at run time. Knowledge of such code is essential for slicing.

Slicing of Web Applications Using Source Code Analysis

/pdf/slicing-java-server-pages-application-742d7hm5zw.pdf

Slicing Java Server Pages Application

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.

Slicing Web application based on hyper graph

Program slicing revealed a useful way to limit the search of software defects during debugging and to better understand the decomposition of the application into computations. We propose to extend the extraction of slices to Web applications, in order to produce a reduced Web application which behaves as the original one with respect to some criterion, i.e., some displayed information of interest. After presenting the theoretical implications of applying slicing to Web applications, we demonstrate its usefulness with reference to an example, derived from a survey of a set of travel agency sites. Web application slicing helps to disclose relevant information and understand the internal system structure.

Web application slicing

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Slicing Java Server Pages Application

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Slicing of Web Applications Using Source Code Analysis

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Slicing Web application based on hyper graph

Web application slicing

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