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Web services are widely used nowadays for their interoperability and reusability. Since Web services only provide interface information for users and source codes are encapsulated, generating test cases for Web services in the view of users has more challenges than traditional software. We develop a constraint-solver based method to generate test cases for composite Web services. The technique first...
Boundary-Scan is a standard architecture of DFT (Design For Testability), and is widely applied to board test, system debug and IC program. A general design method which adds the boundary-scan architecture into the logic core of circuit is proposed. Taken the IP core of 74290 as an example, the modular design of boundary-scan architecture is described by Verilog language, and verified in the corresponding...
With the rapid development of microelectronics, it is difficult to test complicated integrated circuit for the traditional test methods. For this circs, JTAG puts forward a new kind of circuit test method — boundary scan technology. According to the IEEE1149.4, a boundary scan controller is designed by ATmega128 MCU and SN74ACT8990. Experiments show that the test controller can locate faults rapidly...
Virtual users with high quality are the preconditions to ensure the effect of load testing for Web applications. The existed tools for load testing usually generate virtual users with randomly choosing user sessions, manually generating user sessions or mining Log files, which causing such problems as non-real workload, subjectivity or difficult to update. Therefore we set each virtual user with a...
Combinatorial testing aims to detect interaction faults, which are triggered by interaction among parameters in system, by covering some specific combinations of parametric values. Most works about combinatorial testing focus on detecting such interaction faults rather than locating them. Based on the model of interaction fault schema, in which the interaction fault is described as a minimum fault...
Regression testing is necessary to assure the quality of service-oriented business applications in their evolutions. However, because of the constraint of testing resource, entire test suite may not run as a result. Therefore, test case prioritization technique is required to increase the efficiency of Web service application regression testing. In this paper, we propose a dependence analysis based...
For large and complex composite Web services which are composed by BPEL and a set of WSDL and XSD documents, we urgently need the aid of the tools in designing and selecting test cases. However, most of mature testing tools which generate test data with the information of WSDL are used for single service while the research for composition remains in the realm of theory. So we apply the theory of data-flow...
Oily wastewater treating technologies of tertiary oil recovery in oil-fields are introduced first. The technological process and the main test contents of wastewater treatment are described. Oily wastewater was treated advanced by multi-type hydro-cyclones in two stage series. The hydro-cyclone type per stage, combination mode and operation parameter in two stage series are determined by separation...
Cold-formed steel headers are structural components used over wall openings in cold-formed steel residential and light commercial construction. Recently, there has been an increased interest in cold-formed L-headers among homebuilders primarily due to their ease of installation and low material cost. The findings from an extensive laboratory testing program, of full-scale single and double cold-formed...
At present, most of Web applications have multi-tier architectures. The Web application contains many components, which makes it become component-based Web application. This paper focuses on this kind of Web applications and constructs three dependency graphs based on structure relations and message call relations. Then we improve the path-based integration testing method, propose an extended MM-path...
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