While Web Services already provide distributed operation execution, the registration and discovery with UDDI is still based on a centralized repository. In this paper we propose a distributed XML repository, based on a Peer-to-Peer infrastructure called pXRepository for Web Service discovery. In pXRepository, the service descriptions are managed in a completely decentralized way. Moreover, sinc...

This Unified Information Service Browser (UISB) project is investigating the means of joining heterogeneous information from multiple sources into a combined and navigable structure. We are particularly interested in utilising data from multiple information services, such as UDDI, LDAP, and Jini’s LUS. Attempting to unify disparate data sources illustrates that hierarchical and relational data ...

The Web Services Framework provides techniques to enable the application-toapplication use of the Web. It has the potential of becoming the core of a new Web-based middleware platform, providing interoperability between computational services using Weband Internet-technologies. Security is of course of major importance in this context. We introduce here extensions to two major building blocks o...

Integration of Web Services for large-scale applications concerns complex processes. Component technology is an important way to decompose a complex process and promote efficiency and quality. This paper proposes a service integration approach considering both the integration of service flows and the integration of data flows. The approach includes the component-based Web Service process defini...

As grid infrastructures become more dynamic in order to cope with the uncertainty of demand, they are becoming extremely difficult to manage. At the Belfast e-Science Centre, we are attempting to address this issue by developing Self Managing Grid Middleware. This paper gives an overview of the middleware and focuses on the design, implementation and evaluation of a Resource Manager. Also in th...

In this article, we examine how security applies to Service Oriented Architecture (SOA). Before we discuss security for SOA, lets take a step back and examine what SOA is. SOA is an architectural approach which involves applications being exposed as "services". Originally, services in SOA were associated with a stack of technologies which included SOAP, WSDL, and UDDI. This article addresses th...

The non-functional QoS (quality of service) information helps us to select a proper Web-service from the web applications, by using component services such as UDDI[1](Universal Description, Discovery, and Integration) and MDS(Monitoring and Discovery System). MDS is a suite of web services to monitor and discover resources and service on Grids, but MDS only based on function aspects. This paper...

Considering the existing problems in Web service such as lack of semantic information and interoperability, atomic services can not cooperate with each other and be combined into composite services. In this paper, based on extended UDDI, we present a semantic annotation framework for Web service description and composition. The novel service matching algorithm not only takes into account the he...

Glossary CAN: Content-Adressable Network DHT: Distributed Hash Table JSON: JavaScript Object Notation NAICS: North American Industrial Classification System OWL-S: Ontology Web Language for Services REST: Representational State Transfer SA-WSDL: Semantically Annotated WSDL SA-REST: Semantic Annotation of Web Resources SIC: Standard Industrial Classification SML: Service Modeling Language SOA: S...

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