Ontology-mediated integration of intranet Web services

The recent adoption of XML-based Web services standards has further integrated distributed resources with open Internet protocols at the software service level. Developers are moving beyond simply extending Web resource access and are making a sustained effort to tap into the depth of mutual understanding that can be culled from the Web's diverse content. Ultimately, they will organize this information conceptually and place it in the semantic Web's framework. For end users, the vast increase in available services these initiatives provide can imply either more freedom or more chaos. This flood of options raises the vital issue of how emerging technologies can help to automate the manual operations individual applications require. The smart office task automation framework uses Web services, an ontology, and agent components to create an integrated information-service platform that provides user-centric support for automating intranet office tasks.     

基于Agent的Web服务集成模型与集成算法

针对现有Web服务集成方法在动态性、灵活性和智能性等方面存在的不足,提出一种基于Agent的Web服务集成模型,对模型中多Agent系统的组织结构和交互方式进行了设计。为实现集成服务整体的QoS目标,以一个通用的Web服务QoS度量模型为基础,将局部最优与全局最优的思想相结合,提出一种基于QoS的Web服务集成路径选择算法,通过实验验证了其有效性。     

Flexible Web services integration: a novel personalised social approach

Abstract

Dynamic composition or integration remains one of the key objectives of Web services technology. This paper aims to propose an innovative approach of dynamic Web services composition based on functional and non-functional attributes and individual preferences. In this approach, social networks of Web services are used to maintain interactions between Web services in order to select and compose Web services that are more tightly related to user’s preferences. We use the concept of Web services community in a social network of Web services to reduce considerably their search space. These communities are created by the direct involvement of Web services providers.     

CORBA与Web服务的比较与集成

CORBA作为成熟的分布式计算标准，主要用来构造企业内部事务紧急的应用，Web Services是近年来提出的一种新的面向服务的体系结构，主要用来开发基于Internet的服务。针对CORBA在Internet环境下数据共享和应用集成的局限性，提出了CORBA与Web Services集成的方案，设计了集成网关并研究了集成中的关键问题：接口映射转换、消息类型转换和CORBA对象的动态调用。     

语义Web服务——Web服务的扩展

语义Web服务是应用语义Web技术对Web服务的扩展.使信息具有语义就是用计算机内的Ontology中的概念作标记符对信息进行标记,对该过程予以支持的就是语义Web技术,即Ontology的构建技术、Ontology的使用技术(语义推理技术)和信息的语义标记技术.语义Web技术对Web服务的扩展可具体化为两项任务:服务提供者、服务请求者和服务注册处三类服务主体均内置Ontology;发布、查找和绑定三种交互信息均采用语义标记.     

From e-sex to e-commerce: Web search changes

The Web has become a worldwide source of information and a mainstream business tool. Are human information needs and searching behaviors evolving along with Web content? As part of a body of research studying this question, we have analyzed three data sets culled from more than one million queries submitted by more than 200,000 users of the Excite Web search engine, collected in September 1997, December 1999, and May 2001. This longitudinal benchmark study shows that public Web searching is evolving in certain directions. Specifically, search topics have shifted from entertainment and sex to commerce and people, but there is little change in query lengths or frequency per user. Search topics have shifted, but there is little change in user search behaviors     

Dasher: a prototype for federated e-commerce services

The Dasher project (Defense Acquisition System for High performance Services) focuses on the procurement subset of e-commerce. It aims to provide a common service infrastructure that supports distributed applications and federations of loosely affiliated software components. The Dasher effort leverages a long standing electronic procurement application called FAST (A.-L. Neches, 1993), which has evolved during continuous operation since 1987. The FAST implementation intertwines multiple procurement services, which are controlled asynchronously during operation. Dasher modularizes and restructures FAST to investigate a federated systems approach     

An information integration framework for e-commerce

One of the main challenges for e-commerce infrastructure designers is to retrieve data from different sources and create a unified view that overcomes contradictions and redundancies. Virtual catalogs, such as the Momis project, can help synthesize data and present it in a unified manner to the customer.     

Acceptance of e-commerce services: the case of electronicbrokerages

This paper examines human motivations underlying individual acceptance of business-to-consumer (B2C) electronic commerce services. Such acceptance is the key to the survival of firms in this intensely competitive industry. A modified theory of planned behavior (TPB) is used to hypothesize a model of e-commerce service acceptance, which is then tested using a field survey of 172 e-brokerage users. We found TPB was useful in explaining e-commerce service acceptance, however, acceptance motivations were significantly different from that of typical IS products. Based on a broader conceptualization of TPB's subjective norm to include both external (mass-media) and interpersonal influences, we report that subjective norm is an important predictor of e-commerce acceptance, behavioral control has minimal impact on e-commerce acceptance, and external influence is a significant determinant of subjective norm. Implications of these findings in light of e-commerce research and practice are discussed     

Product data integration in B2B e-commerce

To overcome current bottlenecks in business-to-business (B2B) electronic commerce, we need intelligent solutions for mechanizing the process of structuring, standardizing, aligning and personalizing data. This article surveys the overall content management process and discusses requirements for its scalable support.     

Web services: beyond the hype

The paper considers Web services (WS). WS comprises a set of platform-neutral technologies designed to ease the delivery of network services over intranets and the Internet. Cross-platform capabilities are one of WS's key attractions because interoperability has been a dream of the distributed computing community for years. The paper lists some WS Web sites and discusses Java-based initiatives     

Web services management: a survey

Solutions based on service-oriented architectures are promising in that they leverage common services and enable collaborative business processes that cross organizational boundaries. However, because Web services applications can span multiple hosts, operating systems, languages, and enterprises, it's problematic to measure, control, and manage application availability and performance. In addition to discussing the relationship of Web services management to traditional distributed systems management, this survey explores various Web services management approaches and their underlying architectural concepts.     

Web services push

Industry heavyweights Hewlett-Packard, IBM, Microsoft, Oracle, Sun Microsystems, BEA Systems and webMethods, have signed on to support VeriSign’s open standard-based framework that will let these vendors and others add security and authentication services to their Web services development tools.     

Web services notifications

As Web services have matured, they've also acquired the need for asynchronous push capabilities. Early Web services, such as those for getting traffic or weather reports or for performing currency exchange-rate calculations, were seemingly all remote procedure calls-oriented. In an RPC system, the receiver typically performs the requested service and sends a response back to the caller over the same connection on which the request arrived, which means the details required by the service for sending a reply are implicit in the RPC network connection. Unfortunately, these kinds of implied communication details are wholly inadequate for asynchronous push Web services.     

Web services policies

In addition to the basic Web services architecture, various specifications already exist for adding security, reliable messaging, and transaction mechanisms to Web services messages. All of these include numerous options to let them meet various application requirements. Specifying option choices for Web services in basic communication areas such as security, reliable messaging, privacy, and transactions is the immediate goal underlying efforts to define Web services policies.     

Semantic Web services

The authors propose the markup of Web services in the DAML family of Semantic Web markup languages. This markup enables a wide variety of agent technologies for automated Web service discovery, execution, composition and interoperation. The authors present one such technology for automated Web service composition.     

Understanding Web services

Web services are a new breed of Web applications. These independent application components are published on to the Web in such a way that other Web applications can find and use them. They take the Web to its next stage of evolution, in which software components can discover other software components and conduct business transactions. Examples of Web services include a credit card service that processes credit card transactions for a given account number, a market data service that provides stock market data associated with a specified stock symbol, and an airline service that provides flight schedule, availability, and reservation functionalities. Major vendors like IBM, Microsoft, Hewlett-Packard, and Sun, among others, are investing heavily in Web services technology. Ranging from simple to complex, Web services bring the promise of flexible, open-standards-based, distributed computing to the Internet     

User profiling and virtual agents: a case study on e-commerce services

The main contribution of this work is the design of an application framework based on both conversational agents and user profiling technologies for the development of e-commerce services. User profiles are exploited by conversational agents to help customers in retrieving potentially interesting products from a catalogue. Three techniques were used for collecting data for a usability test: eye-movement tracking, questionnaire, and recording the user-system dialogue. The main outcomes of the experimental sessions are: (1) the dialogue capabilities of the agent facilitate the interaction between the user and the e-commerce site; and, (2) user profiles improve the retrieval capabilities of the agent. Finally, some limitations of the user profiling techniques adopted in the framework are discussed and a more sophisticated content-based profiling technique is proposed.     

A study on cross-border e-commerce partner selection in B2B mode

Electronic Commerce Research - The emergence of cross-border e-commerce has brought new opportunities to traditional enterprises. This paper discusses the partner selection of cross-border...