Web Service Orchestration and Choreography

2011 ◽  
pp. 250-273 ◽  
Author(s):  
Florian Daniel
Keyword(s):  
Web Services ◽  
Web Service ◽  
Point Of View ◽  
Service Development ◽  
Service Orchestration ◽  
Development Framework ◽  
Web Service Orchestration ◽  
Problems And Solutions ◽  
Enterprise Collaboration ◽  
The Web

The Web service domain is a fast growing and fast changing environment. From a business perspective, the trend over the last few years in the Web services area firmly points toward seamless business logic integration and inter-enterprise collaboration. However, in order to accomplish such goals, both technological and conceptual advances are required. Some already have proven their viability, others still have to be made. Among them, Web service orchestration and choreography are of crucial importance, but still lack a widely agreed on development framework comprising both technological and conceptual aspects. In this paper we try to provide a critical snapshot of current standards for Web service development and particularly we focus on Web service orchestration and choreography. We discuss problems and solutions from a conceptual point of view, exemplify the illustrated ideas by means of real-world technologies and standards and highlight the mutual dependencies that exist among orchestration and choreography of Web services.

A Model-based Approach for Diagnosing Fault in Web Service Processes

2013 ◽  
pp. 92-116
Author(s):  
Yuhong Yan ◽  
Philippe Dague ◽  
Yannick Pencolé ◽  
Marie-Odile Cordier
Keyword(s):  
Web Services ◽  
Web Service ◽  
Business Process ◽  
Business Processes ◽  
Formal Model ◽  
Service Orchestration ◽  
Model Based ◽  
Architecture Framework ◽  
Web Service Orchestration ◽  
Business Process Execution

Web services based on a service-oriented architecture framework provide a suitable technical foundation for business process management and integration. A business process can be composed of a set of Web services that belong to different companies and interact with each other by sending messages. Web service orchestration languages are defined by standard organizations to describe business processes composed of Web services. A business process can fail for many reasons, such as faulty Web services or mismatching messages. It is important to find out which Web services are responsible for a failed business process because we could penalize these Web services and exclude them from the business process in the future. In this paper, we propose a model-based approach to diagnose the faults in a Web service-composed business process. We convert a Web service orchestration language, more specifically BPEL4WS, into synchronized automata, so that we have a formal description of the topology and variable dependency of the business process. After an exception is thrown, the diagnoser can calculate the business process execution trajectory based on the formal model and the observed evolution of the business process. The faulty Web services are deduced from the variable dependency on the execution trajectory. We demonstrate our diagnosis technique with an example.

A Model-Based Approach for Diagnosing Fault in Web Service Processes

2011 ◽  
pp. 1970-1993 ◽  
Author(s):  
Yuhong Yan ◽  
Philippe Dague ◽  
Yannick Pencolé ◽  
Marie-Odile Cordier
Keyword(s):  
Web Services ◽  
Web Service ◽  
Business Process ◽  
Business Processes ◽  
Formal Model ◽  
Formal Description ◽  
Service Orchestration ◽  
Model Based ◽  
Web Service Orchestration ◽  
Business Process Execution

Web service orchestration languages are defined to describe business processes composed of Web services. A business process can fail for many reasons, such as faulty Web services or mismatching messages. It is important to find out which Web services are responsible for a failed business process because we could penalize these Web services and exclude them from the business process in the future. In this paper, we propose a model-based approach to diagnose the faults in a Web service-composed business process. We convert a Web service orchestration language, BPEL4WS, into synchronized automata, so that we have a formal description of the topology and variable dependency of the business process. After an exception is thrown, the diagnoser can calculate the business process execution trajectory based on the formal model and the observed evolution of the business process. The faulty Web services are deduced from the variable dependency on the execution trajectory.

A JBPM-Based Workflow Engine for Web Services Orchestration

2012 ◽  
Vol 198-199 ◽  
pp. 462-467
Author(s):  
Fan Feng Lu ◽  
Shi Ying ◽  
Kai Zhao ◽  
Li Zhang
Keyword(s):  
Web Services ◽  
Web Service ◽  
Open Source ◽  
Support Service ◽  
Workflow Engine ◽  
Service Orchestration ◽  
Web Service Orchestration ◽  
Services Orchestration

A novel workflow engine for Web service orchestration, JBPM4WS is proposed in this paper. JBPM4WS is built on JBPM, a well-known workflow engine. We extend the workflow language JPDL, which is adopted by JBPM, to support service invoking. JBPM4WS engine adopts four-layer architecture, and is implemented based on some open-source frameworks, such as Hibernate, CXF and JAXB.

E-Supply Chain Orchestration

2011 ◽  
pp. 457-463
Author(s):  
Alexander Verbraeck ◽  
Tamrat Tewoldeberhan ◽  
Marijn Janssen
Keyword(s):  
Supply Chain ◽  
Web Services ◽  
Web Service ◽  
Business Processes ◽  
Added Value ◽  
United States Department ◽  
Service Orchestration ◽  
Supply Chain Logistics ◽  
Web Service Orchestration ◽  
Chain Business

The world today is witnessing a growing interest in conducting supply chain business processes electronically. Different supporting technologies are emerging, and many are already available on the market. The adoption of these technologies is hampered by the fact that organizations constantly face new requirements, constraints and demands. Recent research has shown that service-oriented architectures and its supporting technology, Web services, can address many major issues encountered in complex supply chains. However, one of the largely unsolved issues is the orchestration of the variety of Web services in the supply chain. This chapter presents an investigation on orchestration of supply chain business processes using portals and Web service technologies. The portal-based orchestration concepts were carried out in a project for supporting end-to-end supply chain logistics in the United States Department of Defense. A second supply chain study looked at the added value of Web service orchestration.

scholarly journals An Integrated Framework for Web Services Orchestration

2013 ◽  
pp. 306-335 ◽  
Author(s):  
C. Boutrous Saab ◽  
D. Coulibaly ◽  
S. Haddad ◽  
T. Melliti ◽  
P. Moreaux ◽  
...  
Keyword(s):  
Web Services ◽  
Web Service ◽  
Formal Semantics ◽  
Service Development ◽  
Electronic Business ◽  
Development Framework ◽  
Active Research ◽  
Services Orchestration ◽  
Interaction Problem ◽  
Java Code

Currently, Web services give place to active research and this is due both to industrial and theoretical factors. On one hand, Web services are essential as the design model of applications dedicated to the electronic business. On the other hand, this model aims to become one of the major formalisms for the design of distributed and cooperative applications in an open environment (the Internet). In this article, the authors will focus on two features of Web services. The first one concerns the interaction problem: given the interaction protocol of a Web service described in BPEL, how to generate the appropriate client? Their approach is based on a formal semantics for BPEL via process algebra and yields an algorithm which decides whether such a client exists and synthetize the description of this client as a (timed) automaton. The second one concerns the design process of a service. They propose a method which proceeds by two successive refinements: first the service is described via UML, then refined in a BPEL model and finally enlarged with JAVA code using JCSWL, a new language that we introduce here. Their solutions are integrated in a service development framework that will be presented in a synthetic way.

Web Services Architecture Model to Support Distributed Systems

2019 ◽  
Vol 54 (6) ◽  
Author(s):  
Sawsan Ali Hamid ◽  
Rana Alauldeen Abdalrahman ◽  
Inam Abdullah Lafta ◽  
Israa Al Barazanchi
Keyword(s):  
Web Services ◽  
Web Service ◽  
Distributed System ◽  
Modern Technology ◽  
Service Description ◽  
Architecture Model ◽  
Software Applications ◽  
Evolving Model ◽  
The Web

Recently, web services have presented a new and evolving model for constructing the distributed system. The meteoric growth of the Web over the last few years proves the efficacy of using simple protocols over the Internet as the basis for a large number of web services and applications. Web service is a modern technology of web, which can be defined as software applications with a programmatic interface based on Internet protocol. Web services became common in the applications of the web by the help of Universal, Description, Discovery and Integration; Web Service Description Language and Simple Object Access Protocol. The architecture of web services refers to a collection of conceptual components in which common sets of standard can be defined among interoperating components. Nevertheless, the existing Web service's architecture is not impervious to some challenges, such as security problems, and the quality of services. Against this backdrop, the present study will provide an overview of these issues. Therefore, it aims to propose web services architecture model to support distributed system in terms of application and issues.

A QoS-aware approach for runtime discovery, selection and composition of semantic web services

2016 ◽  
Vol 12 (2) ◽  
pp. 177-200 ◽  
Author(s):  
Sanjay Garg ◽  
Kirit Modi ◽  
Sanjay Chaudhary
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Web Service ◽  
User Satisfaction ◽  
Service Discovery ◽  
Semantic Web Services ◽  
Functional Requirements ◽  
Semantic Description ◽  
Content Type ◽  
The Web

Purpose Web services play vital role in the development of emerging technologies such as Cloud computing and Internet of Things. Although, there is a close relationship among the discovery, selection and composition tasks of Web services, research community has treated these challenges at individual level rather to focus on them collectively for developing efficient solution, which is the purpose of this work. This paper aims to propose an approach to integrate the service discovery, selection and composition of Semantic Web services on runtime basis. Design/methodology/approach The proposed approach defined as a quality of service (QoS)-aware approach is based on QoS model to perform discovery, selection and composition tasks at runtime to enhance the user satisfaction and quality guarantee by incorporating non-functional parameters such as response time and throughput with the Web services and user request. In this paper, the proposed approach is based on ontology for semantic description of Web services, which provides interoperability and automation in the Web services tasks. Findings This work proposed an integrated framework of Web service discovery, selection and composition which supports end user to search, select and compose the Web services at runtime using semantic description and non-functional requirements. The proposed approach is evaluated by various data sets from the Web Service Challenge 2009 (WSC-2009) to show the efficiency of this work. A use case scenario of Healthcare Information System is implemented using proposed work to demonstrate the usability and requirement the proposed approach. Originality/value The main contribution of this paper is to develop an integrated approach of Semantic Web services discovery, selection and composition by using the non-functional requirements.

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