Software Engineering

A. M. Abirami ¹, A. Askarunisa ²

Affiliations
1 Department of Information Technology, Thiagarajar College of Engineering, Madurai, Tamil Nadu, IN
2 Department of Computer Science and Engineering, Thiagarajar College of Engineering, Madurai, Tamil Nadu, IN

Abstract

Today most of the web pages are in the form of HTML only. Many data do exist, but there is no or less way for generating reports from various but related HTML pages. For example, the information of an individual person may be stored in HTML pages. There is no way for collectively getting the report about all the people for particular information. Most of the time, this is done manually. This paper proposes a semantic based approach for generating reports from HTML pages using semantic technologies like OWL, RDF and SPARQL. The required HTML pages are navigated and information from the table and the list are collected as a first step. The data is pre-processed and formatted in a CSV file, such that it enables further processing easier. OWL files are created for the corresponding domain which can act as a dictionary for the application. CSV contents are separated based on the OWL files and the rules. Separated contents are stored in the RDF format and SPARQL is used to query the RDF file. The proposed model thus can be a handy tool for the management people to generate reports readily, without spending much manual time.

Keywords

RDF, OWL, SPARQL, HTML Reports.

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A. Askarunisa ¹, K. Arockia Jackulin Punitha ², A. M. Abirami ³

Affiliations
1 Thiagarajar College of Engineering, Department of Computer Science, Madurai, IN
2 Computer Science Department in Thiagarajar College of Engineering, Madurai, IN
3 Thiagarajar College of Engineering, Department of Information Technology, Madurai, IN

Abstract

Web services are the basic building blocks for the business which is different from web applications. Testing of web services is difficult and increases the cost due to the unavailability of source coder. In previous work, web services are tested based on the syntactic structure using Web Service Description Language (WSDL) for atomic web services. This paper proposes an automated testing framework for composite web services based semantics where the domain knowledge of the web services is described by protégé tool [4] and the behavior of the entire business operation flow for the composite web service is provided by Ontology Web Language for services (OWL-S)[1]. Prioritization of test cases is performed based on various coverage criteria for composite web services. Series of experiments were conducted to assess the effects of prioritization on the coverage values and benefits of prioritization techniques were found.

Keywords

Composite Web Services, Ontology Web Language for Services, Protégé, Test Case Prioritization.

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A. Askarunisa ¹, A. M. Abirami ², N. Ramaraj ³

Affiliations
1 Department of Computer Science and Engineering, Thiagarajar College of Engineering, IN
2 Department of Information Technology, Thiagarajar College of Engineering, IN
3 GKM College of Engineering, IN

Abstract

Web Services (WS) are the basic building blocks for every e-business applications. They provide efficient reusability mechanism, thereby reducing the development time and cost. Web services can be identified by Uniform Resource Identifier (URI). The interfaces and bindings of Web Services can be discovered, defined and described as XML artifacts according to Web Service Description Language (WSDL). WSDL can be used to describe web service operations including input, output and exceptions. It cannot identify pre and post conditions of web services. But Semantic WSDL (WSDL-S) identifies the pre and post conditions of web services to generate optimal number of test cases. This paper presents an approach for generating web service test cases using WSDL-S and Object Constraint Language (OCL), while the test case generation technique is Orthogonal Array Testing (OAT). We have generated WSDL of web service to be tested using NetBeans IDE and converted into WSDL-S by giving OCL references, where pre and post conditions are defined. Test data, using OAT, with different factors, levels and strengths are generated and documented in XML based test files called Web Service Test Specifications (WSTS) and executed. Test cases are prioritized based on different criteria like statement coverage, condition coverage, execution time and fault rate. We have conducted testing on various web service applications and the results have shown that the test case prioritization based on fault rate is effective for determining the faults earlier and it is proved by the metric Average Percent of Fault Detection (APFD).

Keywords

Web Services Testing, Semantics, Test Case Generation, Orthogonal Testing, Test Case Prioritization, APFD, FDD, FDE Metrics.

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