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Modelling and verification of web navigation

引用

9th International Conference on Web engineering, ICWE 2009

作者： Ding, Zuohua Jiang, Mingyue Pu, Geguang Sanders, Jeff W. Center of Math Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou Zhejiang 310018 China Software Engineering Institute East China Normal University Shanghai 200062 China International Institute for Software Technology Unite Nations University P.O. Box 3058 China

ISBN: (纸本)3642028179

Web navigation model provides a dynamic view for web modelling. It is useful for clarifying requirements and specifying implementation behaviors of systems from design intensions. In this paper, we propose a formal model to describe web navigation of user behaviors, where link activities play an important role. Several issues have been considered in our model, such as web browser effects, adaptive navigation, frame communication etc. After the link activity model is established, we use model checker SPIN to check whether there exist problems such as such as broken links, dead ends, missed reply pages, reachability of pages etc. This method can help us to analyze user behaviors, meanwhile it provides us a way to expose design faults in web systems. © 2009 Springer Berlin Heidelberg.

关键词： Model checking

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Reliability computing For Service Composition

Reliability Computing For Service Composition

引用

2009 Third IEEE International Conference on Secure Integration and Reliability Improvement SSIRI 2009(第三届IEEE安全软件集成及可信性改进国际会议)

作者： Zuohua Ding Mingyue Jiang Center of Math Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou Zhejiang 31 Center of Math Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou Zhejiang 310

ISBN: (纸本)9780769537580

Web service composition is a distributed model to construct new web service on top of existing primitive or other composite web services. However, current service technologies, including proposed composition languages, do not address the reliability of web service composition. Thus it is hard to predict the system reliability. In this paper, we propose a method to compute system reliability based on Service Component Architecture(SCA). We first present a formal service component signature model with respect to the specification of the SCA assembly model, and then propose a language-independent dynamic behaviour model for specifying the interface behaviour of the service component by port activities. Then the failure behaviors of ports are defined through the Enhanced Non-Homogeneous Poisson Process(ENHPP). Based on the semantics of ports, several rules have been generated to compute reliabilities of port expressions, thus the overall system reliability can be automatically computed.

关键词： Web Service role model decentralised control Semantics

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Path-based Approach to Integration Testing

Path-based Approach to Integration Testing

引用

2009 Third IEEE International Conference on Secure Integration and Reliability Improvement SSIRI 2009(第三届IEEE安全软件集成及可信性改进国际会议)

作者： Jueliang Hu Zuohua Ding Geguang Pu Center of Math Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou Zhejiang Center of Math Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou Zhejiang Sofrware Engineering Institute Shanghai Key Laboratory of Trustworthy Computing East China Normal U

ISBN: (纸本)9780769537580

In this paper, we focus on the matching of parameter type and order for integration testing. From the unit testing, we can obtain two outputs: l)Interface Net that describes ports to receive parameters and to send parameters;2) Mapping Table that describes the mappings between parameters coming in and parameters going out. To analyze the Interface Net and mappings precisely, we propose a forward slicing technique with symbolic execution to obtain the dependency relation for inputs and outputs. The Interface Net together with Mapping Table will create a Directed Graph, which can be used to generate integration test cases and to check parameter type. Furthermore, a formula is given to calculate the number of test cases. At the same time, the concept called Complexity Degree, is introduced to describe how hard the test going to be.

关键词： Integration Testing Path Analysis Program Slicing

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Test case generation of concurrent programs based on event graph

Test case generation of concurrent programs based on event g...

引用

NCM 2009 - 5th International Joint Conference on Int. Conf. on Networked computing, Int. Conf. on Advanced Information Management and Service, and Int. Conf. on Digital Content, Multimedia technology and its Applications

作者： Xiaoan, Bao Na, Zhang Zuohua, Ding Center of Mathematical Computing and Software Engineering Zhejiang Sci-Tech University Hangzhou 310018 China National Institute for Systems Test and Productivity University of South Florida Tampa FL 33620 United States

ISBN: (纸本)9780769537696

This paper attempts to generate test cases for concurrent programs based on event graph. Through the analysis of state transition of event graph, sub-event-graphs can be generated. Each sub-event-graph corresponds to a test case. We may get benefits from this method in the following. 1) While executing the test case, we can monitor the state transition. 2) Every sub-event-graph is an execution path, or a simulation, thus all test cases are feasible. 3) Since the number of states in the event graph is finite, it is not likely to hit state explosion problem in the test generation process. © 2009 IEEE.

关键词： Testing

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Modelling and Verification of Port Based Component Composition

Modelling and Verification of Port Based Component Compositi...

引用

International Conference on Quality software

作者： Zuohua Ding Mingyue Jiang Center of Math Computing and Software Engineering Zhejiang Science and Technology University Hangzhou Zhejiang China

This paper presents a port based language to describe components and component composition. This language aims to check component composition in three aspects: signature constraints, behaviour compatibility and run ti... 详细信息

ISBN: (纸本)9781424459124

关键词： System recovery software quality software engineering Java Architecture description languages Buildings Computer industry Algebra Wire Asynchronous communication

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Test Data Generation for Derived Types in C Program

Test Data Generation for Derived Types in C Program

引用

Third International Symposium on Theoretical Aspects of software engineering TASE 2009(第三届软件工程理论国际研讨会)

作者： Tao Sun Zheng Wang Geguang Pu Xiao Yu Zuohua Ding JueLiang Hu Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute East China Normal Center of Math Computing and Software Engineering Institute of ScienceZhejiang Sci-Tech University Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute East China Normal

Test data generation is one of the important tasks dur ing software testing. This paper proposes an approach to generating test cases automatically for the unit test of C programs with derived types including pointers, structures and arrays. Our approach combines symbolic execution and concrete execution. The approach captures operations on variables precisely by concrete execution, and thus it is capable of handling derived types. Benefited from symbolic execution, accessing variables as array index can be solved by a substitution strategy. The substitution strategy also translates a path constraint involving variables of derived type to the one containing only primitive variables. An implementation of this approach is integrated into our test case generation tool called CAUT. Experimental results show that our approach is effective to generate test data for derived types.

关键词： Automatic testing software testing Concrete Logic testing Data structures software engineering System testing Programming Sun Laboratories

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Towards the Verification of Services Collaboration

Towards the Verification of Services Collaboration

引用

IEEE Annual International Computer software and Applications Conference (COMPSAC)

作者： Yue Xie Dehui Du Jing Liu Zuohua Ding Software Engineering Institute East China Jiao Tong University China Center of Math Computing and Software Engineering Zhejiang University of Science and Technology China

ISBN: (纸本)9781424445257

Assuring the consistency between collaborative services is a challenge problem in service oriented architecture. In this paper, we propose an approach to verifying the consistency of collaborative services based upon model checking. We first introduce an Extended UML Sequence Diagram for modeling dynamic behavior of collaborative service combining with UML State Chart Diagram. And then we define Collaboration-Contracts and obtain the verification model from the dynamic behavior models. Finally, wean automatically verify the consistency of collaborative services in behavior models by using an integrated SPIN-binding modeling tool Trustable MDA we developed to, In addition, a user-friendly service simulator is provided to locate the position of inconsistency.

关键词： Unified modeling language Service oriented architecture Collaborative software Application software International collaboration software engineering Collaborative tools Contracts software standards Computer industry

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Model Checking Service Component Composition by SPIN

Model Checking Service Component Composition by SPIN

引用

International Conference on Computer and Information science (ACIS)

作者： Zuohua Ding Mingyue Jiang Jing Liu Center of Math Computing and Software Engineering Zhejiang Science and Technology University Hangzhou Zhejiang China Shanghai Key Laboratory of Trustworthy Computing East China Jiao Tong University Shanghai China

Service Component Architecture (SCA) provides a language-independent way to define and compose service component. The SCA assembly model should be reliable. This target can be reached by translating a formal signature model and behavior model for SCA to Promela, and Promela specifications are then verified with the model checker SPIN. SCA complements some service composition languages (such as BPEL) for enabling the more convenient and efficient service-based development. Based on our method and by using IBM WID tool, we show how to build a reliable BPEL process.

关键词： Assembly Component architectures Wire Service oriented architecture Character generation Information science software engineering Calculus Buildings Web services

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Rebuilding Web Application Requirements Based on User Navigation

Rebuilding Web Application Requirements Based on User Naviga...

引用

International Joint Conference on INC, IMS and IDC, NCM

作者： Zuohua Ding Mingyue Jiang Center of Math Computing and Software Engineering Zhejiang Science and Technology University Hangzhou Zhejiang China National Institute for Systems Test and Productivity University of South Florida Tampa FL USA

ISBN: (纸本)9781424452095

Use cases have been used to describe functional requirements of information systems in a natural language. In the design phase, use cases can be used to construct design model and then the model can be checked by some static analysis techniques. Since errors could be created while the design is refined and bugs could be planted in the implementation, after going through the software developing process, it is still question if the resulting system satisfies the original requirements. In this paper, we propose a new technique to rebuild use cases for Web applications, thus we can compare the generated use cases with the designed use cases. For a Web application, due to its special navigation character, we can get rich information in the log file while the user navigates the Web. From the log file, we extract raw data that contains basic structures of the use case. After applying natural language processing technique, we determine the boundary of raw data, reduce the data redundancy, and adjust the sentence, finally, we rebuild the use cases. Standford Parser has been employed to perform the sentence analysis for us. A prototype has been developed to support our technique.

关键词： Navigation Application software Information systems Natural languages Computer errors Computer bugs Data mining Natural language processing Redundancy Performance analysis

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Performance analysis of concurrent programs using ordinary differential equations

Performance analysis of concurrent programs using ordinary d...

引用

32nd Annual IEEE International Computer software and Applications Conference, COMPSAC 2008

作者： Zuohua, Ding Kao, Zhang Center of Math. Computing and Software Engineering Zhejiang Sci.-Tech. University Hangzhou Zhejiang 310018 China

ISBN: (纸本)9780769532622

Based on Continuous Petri Net, we build differential equation model for concurrent programs. The program behavior can be analyzed from the curves of the solutions of the differential equations. We show that a program state can be measured with a number between O and I, called state measure, indicating how much the state can be reached while the program is in execution. Thus, instead of displaying one state at one time, a program can display all states at one time with state measure attached to each state. This information can help us to estimate where and how much the resources have been used. The advantage of our method is that we can avoid state explosion problem while doing program analysis. Our equations can be solved by Matlab and simulated with a tool: Snoopy. © 2008 IEEE.

关键词： Ordinary differential equations

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