Quality analysis of composed services through fault injection

Fugini, Mariagrazia; Pernici, Barbara; Ramoni, Filippo

doi:10.1007/s10796-008-9086-3

Cited by 15 publications

(10 citation statements)

References 16 publications

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“…Considering that the quality of a composed service may depend on the ability of its component services to react to unforeseen situations, such as data quality problems and service coordination problems, an approach is proposed in [29] to analyze the quality of composed services using fault injection techniques. The technique is based in two main aspects: the reactions of the composed service to data faults and the effect of delays on composed services.…”

Section: Background and Related Workmentioning

confidence: 99%

A robustness testing approach for SOAP Web services

Laranjeiro

Vieira

Madeira

2012

J Internet Serv Appl

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The use of Web services in enterprise applications is quickly increasing. In a Web services environment, providers supply a set of services for consumers. However, although Web services are being used in business-critical environments, there are no practical means to test or compare their robustness to invalid and malicious inputs. In fact, client applications are typically developed with the assumption that the services being used are robust, which is not always the case. Robustness failures in such environments are particularly dangerous, as they may originate vulnerabilities that can be maliciously exploited, with severe consequences for the systems under attack. This paper addresses the problem of robustness testing in Web services environments. The proposed approach is based on a set of robustness tests (including both malicious and non-malicious invalid call parameters) that is used to discover programming and design errors. This approach, useful for both service providers and consumers, is demonstrated by two sets of experiments, showing, respectively, the use of Web services Robustness testing from the consumer and the provider points of view. The experiments comprise the robustness testing of 1,204 Web service operations publicly available in the Internet and of 29 home-implemented services, including two different implementations of the Web services specified by the standard TPC-App performance benchmark. Results show that many Web services are deployed with critical robustness N. Laranjeiro · M. Vieira (B) · H. Madeira DEI/CISUC, University of Coimbra, 3030-290 Coimbra, Portugal e-mail: mvieira@dei.uc.pt N. Laranjeiro e-mail: cnl@dei.uc.pt H. Madeira e-mail: henrique@dei.uc.pt problems and that robustness testing is an effective approach to improve services quality.

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Section: Background and Related Workmentioning

confidence: 99%

A robustness testing approach for SOAP Web services

Laranjeiro

Vieira

Madeira

2012

J Internet Serv Appl

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“…Advanced fault injection techniques start injection on encountering specific types of events in the system. Fault injection is a valid way for validating the fault tolerance technique (Fugini et al 2009). …”

Section: Challenges In Grid Dependabilitymentioning

confidence: 99%

Fault tolerance in computational grids: perspectives, challenges, and issues

Haider

Nazir

2016

SpringerPlus

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Computational grids are established with the intention of providing shared access to hardware and software based resources with special reference to increased computational capabilities. Fault tolerance is one of the most important issues faced by the computational grids. The main contribution of this survey is the creation of an extended classification of problems that incur in the computational grid environments. The proposed classification will help researchers, developers, and maintainers of grids to understand the types of issues to be anticipated. Moreover, different types of problems, such as omission, interaction, and timing related have been identified that need to be handled on various layers of the computational grid. In this survey, an analysis and examination is also performed pertaining to the fault tolerance and fault detection mechanisms. Our conclusion is that a dependable and reliable grid can only be established when more emphasis is on fault identification. Moreover, our survey reveals that adaptive and intelligent fault identification, and tolerance techniques can improve the dependability of grid working environments.

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“…Concerning robustness testing, existing approaches propose testing frameworks for injecting faults into service implementations to conduct white-box coverage testing of error recovery code [5] or to analyse the quality of the composed services in terms of fault tolerance capability [6]. However, to the best of our knowledge, only few works address the robustness testing of services composition written in BPEL.…”

Section: Related Workmentioning

confidence: 99%

Towards automated robustness testing of BPEL orchestrators

Manova

Ilieva

Lonetti

et al. 2011

Proceedings of the 12th International Conference on Computer Systems and Technologies - CompSysTech '11

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Recently, a growing interest on robustness testing of services composition is emerging. In this paper, we propose a robustness testing approach of services composition by means of fault injection of the BPEL process. The proposed solution is implemented into the existing TASSA framework aimed at functional and non-functional testing of service applications. A case study is provided for assessing the effectiveness of the proposed approach. INTRODUCTIONSOA (Service Oriented Architecture) is the emerging paradigm for dynamic development and deployment of distributed business applications. Several approaches and tools for SOA testing have been proposed, among which recently an interest towards robustness testing starts to appear, although not many solutions can be found.Testing compositions of services, such as orchestrations or choreographies, poses specific challenges ranging from testing the SOAP messages, the WSDL interface, and the interaction between the service provider and requester as well as the composition schema which defines the business logic of the composite service.We focus here on the testing of BPEL compositions. Existing approaches for BPEL testing deal with structural testing, test coverage through instrumentation, as well as test case generation by path analysis and constraint-solving techniques or model checking.However, in order to build a robust service composition, it is needed to test it against a number of faulty conditions or exceptional cases that can involve the participant services, the BPEL process or the execution environment. For this purpose, new testing approaches focus on the development of testing frameworks able to assess and enhance the robustness of services composition.Following this research direction, in this paper we propose a robustness testing approach of services composition by means of fault injection into the BPEL process. The approach is realized by implementing a new Injector Tool component into TASSA [9], a composable and flexible framework for validating both functional and non-functional behaviour of service-based applications. The Injector Tool component is able to change the BPEL for calling another service (TAXI-WS [2]) that simulates faults of the BPEL process by injecting it with invalid, boundary, and unexpected or random data.The remainder of the paper is organized as follows: in Section 2 we summarize the existing approaches of BPEL validation focusing on those ones addressing robustness testing; in Section 3 we briefly overview the TASSA components and provide the TASSA Injector Tool implementation details. Section 4 presents the proposed approach focusing on the fault injection technique. Section 5 provides a case study showing the potentiality of the proposed Injector Tool into TASSA for assessing the robustness of a BPEL process. Finally, Section 6 concludes the paper and outlines the future research directions.

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Quality analysis of composed services through fault injection

Cited by 15 publications

References 16 publications

A robustness testing approach for SOAP Web services

A robustness testing approach for SOAP Web services

Fault tolerance in computational grids: perspectives, challenges, and issues

Towards automated robustness testing of BPEL orchestrators

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