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A web service (WS) is called compound or composite when its execution involves interactions with other WS to use their features. The composition of WS specifies which services need to be invoked, in what order and how to handle exception conditions. This paper gives an overview of research efforts of WS composition. The approaches proposed in the literature are diverse, interesting and have opened...
With the proliferation of Web Services, scientific applications are more and more designed as temporal compositions of services, commonly referred to as, workflows. To address this paradigm shift, different workflow management systems have been proposed. If their efficiency has been established over centralized reliable systems, it is questionable over highly decentralized failure-prone platforms...
Since the wide adoption of Open Social by SNS providers between late 2009 and middle 2010, the mobile business in Japan has quickly turned into the direction of item purchasing. This revenue-generating engine is so powerful that it has changed the landscape of mobile business and the game business in Japan. In less than 2 years, the market involving the item purchasing of mobile social games quickly...
In the distributed computing environment, XML becomes the main choice as the way to transfer and store data in Web Services and distributed systems. With the development of the Web Services technique, there is a higher demand for an efficient XML message processing in some real-time systems. The XML messages are always parsed by software. Although many software-based XML processing techniques have...
Current web service composition basically proceeds by static composition using pre-defined workflow model. When a user asks for a web service, there is probably not any single web service can satisfy his need. Sometimes, some web services should be composed to fulfill the request. Pure static composition lacks of flexibility. But to compose the web services only when needed will affect the efficiency...
Web Services offer great promise for integrating and automating software applications within and between enterprises over the Internet. However, ensuring that Web Services can satisfy their clients' requests when their clients need them is a real challenge. In this paper we suppose to introduce various offered solutions about dependability of Web Services. Offered Solutions, are divided into Fault...
The execution of workflow oriented applications for eScience should be based on efficient solutions for available resource monitoring and scheduling by revising the allocation solution at the task level based on requirements of subsequent tasks. The PEGAF project aims at providing a platform for workflow oriented applications development and execution, implementing adaptive scheduling strategies....
This paper presented a Kahn Process Network (KPN) based service composition environment called CSCE which can establish interactions among computational service nodes. KPN is a model of computation and commonly used for describing a set of cooperative processes that communicate with each other using FIFO buffered channel. KPN has several advantages which make it adequate to model service interactions:...
In this article we present an architecture for the integration of external and independent software components into IMS-LD based courses that cater for adaptivity. The architecture allows combining existing research on explicit representations of collaborative learning processes (i.e. learning designs) with the availability of existing and tested collaborative learning tools (e.g. a forum in a VLE,...
Service oriented architectures and their semantic enhancements make distributed environments more user and computer friendly. In SOA-oriented distributed scientific environments, the services implementing complicated mathematical algorithms can be the building blocks for complex applications. We expect that the reuse of remote services instead implementation dependent libraries can be the next step...
In this paper, we proposed a framework integrated Semantic SOA (Service-Oriented Architecture) and Workflow to solve the problem of enterprise application rebuilding, and described the function of the main units of the framework. At last, we discussed the aspects of the future studies that we will address.
Service-oriented collective intelligence, which creates new value by combining services provided by various organizations via services computing technologies, has been gaining in importance with the development of services computing technologies. Because collective intelligence needs many participants, it is crucial to build a framework where a wide variety of policies of service providers are satisfied...
Nowadays, executions of composite Web services are typically conducted by heavyweight centralized engines. A centralized is a potential processing and communication bottleneck as well as a central point of failure, and its cost of deployment is usually too high for a large number of small businesses or end-users. In addition, it presents some weaknesses dealing with privacy issues. These drawbacks,...
Nowadays, there is a trend in industrial systems towards the use of common-off-the-shelf (COTS) components to develop applications which interact with open systems. This trend includes among others the use of high-level languages, such as Java, and Internet protocols (TCP-IP, HTTP, and Web Services). However, although many industrial systems use these technologies at their business layers, they are...
The paper discusses the technical issues of developing the web-based distributed spatial information management framework for geological disaster control. The framework includes four main components: 1) The web-based geospatial portal, which provides users web-embedded GIS user interface with union portal passport and uniform identity authentication. Integrated with role-based and geospatial metadata-driven...
Complex scientific workflows are now commonly executed on global grids. With the increasing scale complexity, heterogeneity and dynamism of grid environments the challenges of managing and scheduling these workflows are augmented by dependability issues due to the inherent unreliable nature of large-scale grid infrastructure. In addition to the traditional fault tolerance techniques, specific checkpoint-recovery...
Resource planning and scheduling for a given job is a central issue in the scientific problem solving Grid oriented environments. The workflow oriented approach to this issue has the advantage of efficient allocation of resources at the workflow level by revising the allocation solution at the task level based on requirements of subsequent tasks. The PEGAF project aims at providing a platform for...
As the use of web services is growing, there is an increasing demand for dependability. In this paper we intend to introduce various offered solutions for dependable web services. The existing solutions are divided into two categories: fault tolerance techniques, such as active and passive replications, and the use of design diversity. The main contribution of this paper is the use of design diversity...
The design and implementation of today's complex embedded systems including custom hardware and software is still to a large extent based on a collaboration of heterogeneous, semi-manual and often poorly inter-connected design methods and tools. This usually results in repetitive and longer development cycles. This paper describes an intelligent web service to automatically produce non-standard and...
Many e-commerce firms have adopted the portal as the vehicle for their electronic commerce/business transactions. This is an integrative, user-centric and user-intensive approach, which offers various advantages and benefits to all stakeholders involved. This paper argues for the shopping portal based recommendation for personalized service. The paper firstly describes the background and motivation...
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