84,176 research outputs found
Self-Serv: a platform for rapid composition of web services in a peer-to-peer environment
No full textQuan Z. Sheng, Boualem Benatallah, Marlon Dumas and Eileen Oi-Yan Ma
Introduction to special issue on context-aware web services for the future internet
No full textQuan Z. Sheng, Schahram Dustda
User-driven RFID applications and challenges
No full textAikaterini Mitrokotsa, Quan Z. Sheng, Zakaria Maama
Agent-based support for service composition
No full textThe original publication is available at www.springerlink.comThe complexity of Web services and software agents engineering calls for an approach that aims first, at hiding this complexity and second, at supporting designers in their design and development work. This chapter presents such an approach, which proposes three aspects related to Web services and software agents engineering: intrinsic, organizational/functional, and behavioral. Once the Web services and software agents are engineered, the user in collaboration, with some of the software agents, composes Web services into composite services. The selection of Web services to participate in a composite service is based on two criteria: the execution cost of a Web service and the location of the computing hosts on which the Web service is performed.Zakaria Maamar, Quan Z. Sheng and Boualem Benatalla
Weaving Business Processes and Rules: a Petri Net Approach
No full textThe emerging service-oriented computing paradigm advocates building distributed information systems by chaining reusable services instead of by programming from scratch. To do so, not only business processes, but also business rules, policies and constraints need to be encoded in a process language such as Web Services Business Process Execution Language (WS-BPEL). Unfortunately, the intermixing of business processes and rules in a single process weakens the modularity and adaptability of the systems. In this paper, we propose a formal approach to model the weaving of business processes and rules, following the aspect-oriented principle. In particular, we use Predicate/Transition (PrT) nets to model business processes and business rules, and then weave them into a coherent PrT net. The resulting woven nets are ready for analysing system properties and simulating system behaviour.Jian Yu, Quan Z. Sheng, Paolo Falcarin, and Maurizio Morisi
The Self-Serv environment for Web services composition
No full textCopyright © 2003 IEEESelf-Serv aims to enable the declarative composition of new services from existing ones, the multiattribute dynamic selection of services within a composition, and peer-to-peer orchestration of composite service executions. Self-Serv adopts the principle that every service, whether elementary or composite, should provide a programmatic interface based on SOAP and the Web Service Definition Language. This does not exclude the possibility of integrating legacy applications, such as those written in CORBA, into the service's business logic. To integrate such applications, however, first requires the development of appropriate adapters. The paper considers how the mechanism for composing services in Self-Serv is based on two major concepts: the composite service and the service container.Boualem Benatallah and Quan Z. Sheng; Marlon Duma
Current trends in web engineering: ICWE 2013 international workshops ComposableWeb, QWE, MDWE, DMSSW, EMotions, CSE, SSN, and PhD symposium, Aalborg, Denmark, July 8-12, 2013. Revised selected papers
No full textQuan Z. Sheng Jesper Kjeldskov (Eds.
Personalized service creation and provision for the mobile web
No full textThe convergence of telecom networks and the Internet is fostering the emergence of environments where Web services are available to mobile users. The variability in computing resources, display terminal, and communication channel require intelligent support on personalized delivery of relevant data and services to mobile users. Personalized service provisioning presents several research challenges on context information management, service creation, and inherent limitations of mobile devices. In this chapter, we describe a novel framework that supports weaving context information and services for personalized service creation and execution. By leveraging technologies on Web services, agents, and publish/subscribe systems, our framework enables an effective, user-centric access of integrated services over the mobile Web environments. This chapter overviews the design, architecture, and implementation of the framework.Quan Z. Sheng, Jian Yu, José M. del Alamo and Paolo Falcari
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