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The Business Process Execution Language (BPEL) has become one of the predominant standards for Web services compositions oriented to business processes. An important capability of BPEL is that it allows processes to interact synchronously/asynchronously with other BPEL processes and/or choreographies at large-scale. However, it is a well-known fact that a greater system complexity leads to a greater...
Virtual Communities (VCs) are dominating our daily activities from different insights. Social, Business, Professional, Educational and many VCs are competing to conquer the cloud by targeting more audience through the services they provide. The diversity, magnitude and quality of provided services raise a new challenge for managing these services. Consequently, the success or failure of VCs depends...
The Cloud Computing paradigm has enabled the multi-tenancy architectural approach in Cloud applications. In a multi-tenant application, one single instance is shared by many tenants (users). Since each client has its own and particular requirements and context, that are exposed to change in time, the process of realizing customizable and adaptable services becomes complex and difficult to handle....
In recent years marketplace agility and dynamic business needs require organizations to respond rapidly and cost-effectively to business demands. Service Oriented Architecture (SOA) is one of the most successful ways to design and integrate distributed systems. SOA has evolved to adopt vision of Service Oriented Enterprise. In order to realize this vision it is important to align IT with business...
The idea of service-oriented architecture is always used for modern software system designing. SOA offers methods for system development and system integration. In order to meet the demand of dynamic business, improve the quality of service and quality of experience, this article increases the dynamic service execution engine on the integration layer based on industry standard architecture model of...
Nowadays, the Service-Oriented Distributed Systems are de facto platforms for service providers exposing functionalities to external clients. This type of environments allows distributed deployments of web services with the same functionality to multiple locations (called service replicas) in order to fit the clients' requirements. On consumer's side, accessing these services, in a context that gathers...
This paper addresses the problem of BPM and SOA integration presenting a model of dynamic discovery of services as an approach to improve the agility of SOA-based applications. Many researches have tackled the discovery problem. However, in general they fail in discovering the most suitable service regarding business processes needs. The main contribution of this work is to offer a comprehensive,...
QoS adaptation is an important process in inter-domain service management, since it can guarantee the correct service provisioning when unexpected events occur. However, in inter-domain environments, the human interference and the manual-based operations hamper the deployment of expeditious mechanisms to adapt the QoS of the services. This paper presents an approach based on SOA principles to perform...
Electronic collaboration over the Internet between business partners appear to be converging toward well-established types of message exchange patterns that involve both user-defined standards and infrastructure standards. At the same time, the notion of event is increasingly promoted for asynchronous communication and coordination in SOA systems. In collaboration between partners or between components...
Electronic collaboration over the Internet between business partners appear to be converging toward well-established types of message exchange patterns that involve both user-defined standards and infrastructure standards. At the same time, the notion of event is increasingly promoted for asynchronous communication and coordination in SOA systems. In collaboration between partners or between components...
This paper presents the quality factors of web services with definition, classification, and sub-factors for business and service level measurement. Web services, main enabler for SOA, usually have characteristics distinguished from general stand-alone software. They are provided in different ownership domain by network. They can also adopt various binding mechanism and be loosely-coupled, platform...
The combination of BPM&SOA has been considered a powerful strategy for companies to be more agile. However, integrating BPM and SOA has many challenges especially when composition of applications is envisaged. The main contribution of this work is to propose an integrated model that deals with the problem of service discovery over largely distributed software services providers, including QoS...
This paper presents the quality factors of web services with definition, classification, and sub-factors for business and service level measurement. Web services, main enabler for SOA, usually have characteristics distinguished from general stand-alone software. They are provided in different ownership domain by network. They can also adopt various binding mechanism and be loosely-coupled, platform...
Web service is a new paradigm of using the Web. One of the fundamental supports of the web service vision is a brokerage system that enables services to be published to a searchable repository and later retrieved by potential users. Automated Web service discovery is a key challenge in Service Oriented Architecture (SOA) research. There exist many web services which exhibit similar functional characteristics...
Computing has reached the time of distributed applications everywhere. Service-oriented architectures are more and more used to organize such complex and highly dynamic applications into business processes calling services discovered in registries at load-time. In this context, Quality of Service (QoS) and agility in business processes become key issues. Instead of binding business processes to services...
Web Services, as a way to implements SOA, are equipped with the characteristic of loose coupling. In service oriented application, more and more projects not only need to invoke a certain Web Service, but the composite application of Web Services which is selected from different physical locations. A combination of multiple-Web Services can be implemented by BPEL or the implementations of Web Services...
Service Oriented Architecture (SOA) is not only an architecture, rather it is a relationship between the service provider, broker and user. Designing middleware platforms for this architecture really helps in achieving interoperability, loose coupling and high efficiency especially for applications running in heterogeneous environments. The job of an SOA middleware is to cater for the functional properties...
This paper presents the quality factors of web services with definition, classification, and sub-factors for interoperability and manageability. In SOA systems, service consumers and service providers are usually placed in different ownership domains. They are also developed independently on various platforms and loosely-coupled by network. Services are consumed generally without direct management...
The development of e-business promotes the creation of new e-services; consequently, ways of fast and quality designing of e-services are required. When developing e-services in SOA, it is very important to build the architecture of e-business system that makes the e-service compliant with all and any quality criteria (QoS) specified for it, which would expand its usability; furthermore, it is necessary...
Mashups is an emerging technology that enables users to create a new application based on a composition of contents retrieved from external services or applications. Mashup Platform allows non-programmer end-users to mash-up information sources and services to meet their information needs. However, with the increasing number of services, information sources and complex operations like filtering and...
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