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Consumer-initiated sporadic operations on cloud applications, such as deployment, upgrade and reconfiguration, may fail because of the inherent uncertainty of operating in a cloud environment. For example, if a VM is not able to start, operations dependent on that VM will fail. In this paper we propose an approach for analyzing sporadic operations on cloud applications to facilitate recovery. We do...
Cloud computing is a massively central advancement in the technique that businesses and users devour and work on computing. It's a elementary modify to an prepared model in which applications don't subsist out their lives on a specific section of hardware and in which possessions are more supplely deployed than was the historical standard. It's a primary shift to expansion and utilization model that...
This paper describes the work done at the Carinthia University of Applied Sciences towards integrating VISIR-based labs on the iLab architecture. The Virtual Systems in Reality (VISIR) project is carried out by the Blekinge Institute of Technology, Sweden and features a platform for performing experiments in different domains.
Due to the increasing popularity of Web services technology and the potential of dynamic service selection and integration, many similar services are accessible. Quality of Service (QoS) is the main factor to differentiate similar Web services. In this paper, we propose a broker-based architecture for dynamic web service selection that facilitates the requester to specify his/her non-functional requirements...
Selection of a suitable and apposite web service for a particular goal oriented job has become a difficult challenge due to the increasing and huge number of web services offering similar functionalities. When dynamic discovery is used in Web Services to select a specific service in optimal way, it is familiar that the outcome of the discovery contains more and supplementary than one provider. From...
The increasing number of Web service providers throughout the globe, have produced numerous Web services providing the same or similar functionality. This necessitates the use of tools and techniques to search the suitable services available over the Web. The effective dynamic Web service selection mechanism is a challenging problem as the requester is involved in the selection having wide variety...
The Service Data Object (SDO) is one of the most promising data integration frameworks of the enterprise application area. SDO provides us with a unified and mature programming framework for SOA based development to handle heterogeneous data sources. Separation of data accessing from the SDO API is more flexible while makes the characteristics of performance less noticed. Therefore we here study the...
The integration of existing educational computer-based tools is a current research trend aimed at increasing the range of learning situations that can be supported by most widely adopted Virtual Learning Environments (VLEs). Nevertheless, due to the technological and functional heterogeneity of both tools and VLEs, there is an integration cost that must be assumed and that varies depending on several...
Web Services are at the heart of many Internet-based e-business systems. Security issues in web services are critical for the continuity of the provided services. Solutions such as Role-Based Access Control and Trust-Based Access Control were proposed to address threats to security in single Web Service scenarios. These solutions do not fully provide the required security level in situations related...
Shifting towards process-oriented approaches for IT Service Management (ITSM) is a rather evolutionary than a revolutionary step, enabling IT service providers to automate parts of their management activities. Therefore the existing management tools have to be integrated into an architecture that is aligned with the ITSM processes. The challenge in achieving this lies in the decoupling of the processes...
Enterprise Service Bus (ESB) is a promising tool to solve the problem of service composition at the background of service integration. Traditional ESB is not efficient enough for dynamical composition; and do not have the coordinative distributed execution feature, which can provide both effective and rapid service composition. This paper proposes a Coordinative Service Bus based Execution Platform...
The development of enterprise-wide service-oriented architectures (SOA) is a complex task. In most cases, evolutionary approaches are used to deal with the arising complexity. However, most of the existing design methodologies and implementation strategies focus on more technical, service realization specific aspects. Challenges regarding the definition and the management of related service artifacts...
With the development of Web service technology, SOA has so many applications in industries. How to evaluate a domain oriented service becomes an important issue at present. This paper puts forward an extended SOA (exSOA) architecture and a domain expert-based evaluation model for Web service. It evaluates the candidate service by considering the evaluation result from domain expert and the constraint...
As web service has become the emerging paradigm, the area of web service research has received a lot of attention in recent years. Most of the web services are deployed by site administrators. As the number of request of web services increase tremendously, there is a need to replicate the services to multiple resources. Although manual deployment allow the services to be deployed safely, it is impossible...
In a service-oriented grid environment, how to discover the desired service easily and well is a prime concern since the service providers are selfish and owned by different organization. In this paper, we suggest a reputation based mechanism to implement service selection in the service-oriented grid. The working model and functionality offered by the proposed reputation service are discussed. We...
This paper proposes an approach for automated composition of Web services using the And/Or graph and designs a corresponding layered architecture. The composition approach which decomposes tasks into smaller And, Or subtasks in And/Or graph bases on the similarity algorithm to find out optimized solution graph. Additionally, we embed the sequence-and node to support the transition from the And/Or...
This study introduces a distributed e-education services system based on the service oriented architecture. Next generation educational services must identify and support dynamic semantic mappings to support semantic interoperability. The Service Oriented Architecture facilitates the development of such systems by supporting modular design, application integration and interoperation, and software...
This paper reports empirical research on our requirements processes and methods for engineering service-centric food traceability information systems. We address the need for providing requirements for the service provider and service integrator by developing new structures, architectures and techniques needed to derive services from a requirements specification. Our results are demonstrated by addressing...
The purpose of this panel is to present a broad range of best practices of SOA strategization and operationalization in the use of Web services in real-world SOA implementations. The focus will be on the common challenges and issues encountered in SOA projects. Topics include, but are not limited to, tenets, methodology, architecture, service management, standards, tools, process, organization, governance,...
Making your enterprise data and traditional Web services consumable through the World Wide Web is becoming increasingly important for a organization. REST (Representational State Transfer), a collection architecture principle, plays a key role in making your services easily integrated in both your enterprise applications and others via Web. This tutorial will teach you the basic of REST and the related...
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