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21
Deploying and managing Web services: issues, solutions, and directions
- THE VLDB JOURNAL
, 2005
"... Web services are expected to be the key technology in enabling the next installment of the Web in the form of the Service Web. In this paradigm shift, Web services would be treated as first-class objects that can be manipulated much like data is now manipulated using a database management system. ..."
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Cited by 36 (5 self)
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Web services are expected to be the key technology in enabling the next installment of the Web in the form of the Service Web. In this paradigm shift, Web services would be treated as first-class objects that can be manipulated much like data is now manipulated using a database management system. Hitherto, Web services have largely been driven by standards. However, there is a strong impetus for defining a solid and integrated foundation that would facilitate the kind of innovations witnessed in other fields, such as databases. This survey focuses on investigating the different research problems, solutions, and directions to deploying Web services that are managed by an integrated Web Service Management System (WSMS). The survey identifies the key features of a WSMS and conducts a comparative study on how current research approaches and projects fit in.
Enriching ebXML Registries with OWL Ontologies for Efficient Service Discovery
- IN PROC. OF RIDE’04
, 2004
"... Web services, like their real life counterparts have several properties and thus truly useful semantic information can only be defined through standard ontology languages. Semantic Web is an important initiative in this respect. However, although service registries are the major mechanisms to discov ..."
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Cited by 33 (10 self)
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Web services, like their real life counterparts have several properties and thus truly useful semantic information can only be defined through standard ontology languages. Semantic Web is an important initiative in this respect. However, although service registries are the major mechanisms to discover services, the semantic support provided by service registries is completely detached from the Semantic Web effort. In this
Semantically Enriched Web Services for Travel Industry
- ACM Sigmod Record
, 2004
"... Today, the travel information services are dominantly provided by Global Distribution Systems (GDS). The Global Distribution Systems provide access to real time availability and price information for flights, hotels and car rental companies. However GDSs have legacy architectures with private networ ..."
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Cited by 17 (1 self)
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Today, the travel information services are dominantly provided by Global Distribution Systems (GDS). The Global Distribution Systems provide access to real time availability and price information for flights, hotels and car rental companies. However GDSs have legacy architectures with private networks, specialized hardware, limited speed and search capabilities. Furthermore, being legacy systems, it is very difficult to interoperate them with other systems and data sources. For these reasons, Web service technology is an ideal fit for travel information systems. However to be able to exploit Web services to their full potential, it is necessary to introduce semantics. Without describing the semantics of Web services we are looking for, it is difficult to find them in an automated way and if we cannot describe the service we have, the probability that people will find it in an automated way is low. Furthermore, to make the semantics machine processable and interoperable, we need to describe domain knowledge through standard ontology languages. In this paper, we describe how to deploy semantically enriched travel Web services and how to exploit semantics through Web service registries. We also address the need to use the semantics in discovering both Web services and Web service registries through peer-to-peer technology. 1.
A Semantic based Privacy Framework for Web Services
- In Proc. of ESSW’03
, 2003
"... There are some key considerations in developing a privacy mechanism such as revealing only the minimal pertinent information about the user, not to overwhelm the users while declaring their privacy preferences and requiring no or only limited user interaction. In this paper, with these consideration ..."
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Cited by 12 (0 self)
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There are some key considerations in developing a privacy mechanism such as revealing only the minimal pertinent information about the user, not to overwhelm the users while declaring their privacy preferences and requiring no or only limited user interaction. In this paper, with these considerations in mind, we present a privacy framework for Web services which allow user agents to automatically negotiate with Web services on the amount of personal information to be disclosed on behalf of the user. We propose that Web services declare their input parameters as Mandatory or Optional and allow users to declare how much of their personal information can be made available to the services. The users specify their privacy preferences in different permission levels on the basis of a domain specific service ontology based on DAML-S. The major components of the system are a globally accessible context server which stores user preferences and a service registry where the services advertised and the service semantics are available. 1 1
Exploiting ebXML Registry Semantic Constructs for Handling Archetype Metadata in Healthcare Informatics
- J.- Y. Le Boudec, T. Przygienda, TR 95/113, DI-EPFL
, 1995
"... Using archetypes is a promising approach in providing semantic interoperability among healthcare systems. To realize archetype based interoperability, the healthcare systems need to discover the existing archetypes based on their semantics; annotate their archetypes with ontologies; compose template ..."
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Cited by 11 (4 self)
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Using archetypes is a promising approach in providing semantic interoperability among healthcare systems. To realize archetype based interoperability, the healthcare systems need to discover the existing archetypes based on their semantics; annotate their archetypes with ontologies; compose templates from archetypes and retrieve corresponding data from the underlying medical information systems. In this paper, we describe how ebXML Registry semantic constructs can be used for annotating, storing, discovering and retrieving archetypes. For semantic annotation of archetypes, we present an example archetype metadata ontology and describe the techniques to access archetype semantics through ebXML query facilities. We present a GUI query facility and describe how the stored procedures we introduce, move the semantic support beyond what is currently available in ebXML registries. We also address how archetype data can be retrieved from clinical information systems by using ebXML Web services. A comparison of Web service technology with ebXML messaging system is provided to justify the reasons for using Web services. 1.
A Query Rewriting Approach for Web Service Composition
"... Abstract—Data-Providing (DP) services allow query-like access to organizations ’ data via web services. The invocation of a DP service results in the execution of a query over data sources. In most cases, users ’ queries require the composition of several services. In this paper, we propose a novel ..."
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Cited by 6 (6 self)
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Abstract—Data-Providing (DP) services allow query-like access to organizations ’ data via web services. The invocation of a DP service results in the execution of a query over data sources. In most cases, users ’ queries require the composition of several services. In this paper, we propose a novel approach for querying and automatically composing DP services. The proposed approach largely draws from the experiences and lessons learned in the areas of service composition, ontology, and answering queries over views. First, we introduce a model for the description of DP services and specification of service-oriented queries. We model DP services as RDF views over a mediated (domain) ontology. Each RDF view contains concepts and relations from the mediated ontology to capture the semantic relationships between input and output parameters. Second, we propose query rewriting algorithms for processing queries over DP services. The query mediator automatically transforms a user’s query (during the query rewriting stage) into a composition of DP services. Finally, we describe an implementation and provide a performance evaluation of the proposed approach. Index Terms—Services integration framework, advanced services invocation framework, services delivery platform, composite web services. Ç 1
A Semantic-based User Privacy Protection Framework For Web Services
, 2004
"... Web service technology is an Internet-based distributed computing paradigm to address interoperability in heterogeneous distributed systems. In this paper, we present a privacy framework for Web services which allow user agents to automatically negotiate with Web services on the amount of person ..."
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Cited by 5 (0 self)
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Web service technology is an Internet-based distributed computing paradigm to address interoperability in heterogeneous distributed systems. In this paper, we present a privacy framework for Web services which allow user agents to automatically negotiate with Web services on the amount of personal information to be disclosed on behalf of the user. In developing
Artemis: Deploying Semantically Enriched
- Web Services in the Healthcare Domain. Information Systems Journal, special issue on Semantic Web and Web Services
, 2005
"... An essential element in defining the semantic of Web services is the domain knowl-edge. Medical informatics is one of the few domains to have considerable domain knowledge exposed through standards. These standards offer significant value in terms of expressing the semantic of Web services in the he ..."
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Cited by 2 (2 self)
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An essential element in defining the semantic of Web services is the domain knowl-edge. Medical informatics is one of the few domains to have considerable domain knowledge exposed through standards. These standards offer significant value in terms of expressing the semantic of Web services in the healthcare domain. In this paper, we describe the architecture of the Artemis project, which exploits ontologies based on the domain knowledge exposed by the healthcare information standards through standard bodies like HL7, CEN TC251, ISO TC215 and GEHR. Artemis Web service architecture does not propose globally agreed ontologies; rather healthcare institutes reconcile their semantic differences through a mediator component. The mediator component uses ontologies based on prominent healthcare standards as references to facilitate semantic mediation among involved institutes. Mediators have a P2P communication architecture to provide scalability and to facilitate the discovery of other mediators. The overall architecture of the system is adapted from the Semantic Web enabled Web services proposal. Preprint submitted to Elsevier Science 9 December 2003 1
Enhancing IHE XDS for Federated Clinical Affinity Domain Support
"... Abstract — One of the key problems in healthcare informatics is the inability to share patient records across enterprises. To address this problem, an important industry initiative called “Integrating the Healthcare Enterprise (IHE) ” specified the “Cross Enterprise Document Sharing (XDS) ” Profile. ..."
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Cited by 2 (0 self)
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Abstract — One of the key problems in healthcare informatics is the inability to share patient records across enterprises. To address this problem, an important industry initiative called “Integrating the Healthcare Enterprise (IHE) ” specified the “Cross Enterprise Document Sharing (XDS) ” Profile. In the IHE XDS, healthcare enterprises that agree to work together form a “Clinical Affinity Domain ” and store healthcare documents in an ebXML registry/repository architecture to facilitate their sharing. The affinity domains also agree on a common set of policies such as coding lists to be used to annotate clinical documents in the registry/repository and the common schemes for patient identification. However, since patients expect their records to follow them as they move from one clinical affinity domain to another, there is a need for affinity domains to be federated to enable information exchange. In this paper we describe how IHE XDS can be enhanced to support federated clinical affinity domains. We demonstrate that federation of affinity domains are facilitated when ontologies, rather than coding term lists, are used to annotate clinical documents. Furthermore we describe a patient identification protocol that eliminates the need to keep a master patient index file for the federation.
Semantic technologies for mobile Web and personalized ranking of mobile Web search results
"... The semantic Web has brought exciting new possibilities for information access. Semantic Web is already adopted in several application domains. Our main objective is to critically present solutions using semantic Web technologies to provide successful mobile Web services. Aim of this work is also to ..."
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The semantic Web has brought exciting new possibilities for information access. Semantic Web is already adopted in several application domains. Our main objective is to critically present solutions using semantic Web technologies to provide successful mobile Web services. Aim of this work is also to introduce a novel semantically enriched personalization technique for the accelerating market of mobile environment introducing an enhanced data structure and web algorithm. A prototype has been implemented and proved effective. Furthermore, performance evaluation is also both encouraging and promising. 1.
