scholarly journals Consistency and Modularity in Mediated Service-Based Data Integration Solutions

2011 ◽  
pp. 997-1012
Author(s):  
Yaoling Zhu ◽  
Claus Pahl
Keyword(s):  
Information Systems ◽  
Data Integration ◽  
Web Service ◽  
Data Transformation ◽  
Data Representation ◽  
Data Models ◽  
Information System Architecture ◽  
Semantic Data ◽  
Service Oriented ◽  
High Degree

A major aim of the Web service platform is the integration of existing software and information systems. Data integration is a central aspect in this context. Traditional techniques for information and data transformation are, however, not sufficient to provide flexible and automatable data integration solutions for Web service-enabled information systems. The difficulties arise from a high degree of complexity in data structures in many applications and from the additional problem of heterogeneity of data representation in applications that often cross organisational boundaries. The authors present an integration technique that embeds a declarative data transformation technique based on semantic data models as a mediator service into a Web service-oriented information system architecture. Automation through consistency-oriented semantic data models and flexibility through modular declarative data transformations are the key enablers of the approach.

scholarly journals Consistency and Modularity in Mediated Service-Based Data Integration Solutions

2010 ◽  
pp. 98-113
Author(s):  
Yaoling Zhu ◽  
Claus Pahl
Keyword(s):  
Information Systems ◽  
Data Integration ◽  
Web Service ◽  
Data Transformation ◽  
Data Representation ◽  
Data Models ◽  
Information System Architecture ◽  
Semantic Data ◽  
Service Oriented ◽  
High Degree

A major aim of the Web service platform is the integration of existing software and information systems. Data integration is a central aspect in this context. Traditional techniques for information and data transformation are, however, not sufficient to provide flexible and automatable data integration solutions for Web service-enabled information systems. The difficulties arise from a high degree of complexity in data structures in many applications and from the additional problem of heterogeneity of data representation in applications that often cross organisational boundaries. The authors present an integration technique that embeds a declarative data transformation technique based on semantic data models as a mediator service into a Web service-oriented information system architecture. Automation through consistency-oriented semantic data models and flexibility through modular declarative data transformations are the key enablers of the approach.

scholarly journals Data Integration Through Service-Based Mediation for Web-Enabled Information Systems

2011 ◽  
pp. 84-99
Author(s):  
Yaoling Zhu ◽  
Claus Pahl
Keyword(s):  
Information Systems ◽  
Data Integration ◽  
Web Applications ◽  
Data Representation ◽  
Software Systems ◽  
Transformation Rules ◽  
Constant Change ◽  
Technology Applications ◽  
High Degree ◽  
The Web

The Web and its underlying platform technologies have often been used to integrate existing software and information systems. Traditional techniques for data representation and transformations between documents are not sufficient to support a flexible and maintainable data integration solution that meets the requirements of modern complex Web-enabled software and information systems. The difficulty arises from the high degree of complexity of data structures, for example in business and technology applications, and from the constant change of data and its representation. In the Web context, where the Web platform is used to integrate different organisations or software systems, additionally the problem of heterogeneity arises. We introduce a specific data integration solution for Web applications such as Web-enabled information systems. Our contribution is an integration technology framework for Webenabled information systems comprising, firstly, a data integration technique based on the declarative specification of transformation rules and the construction of connectors that handle the integration and, secondly, a mediator architecture based on information services and the constructed connectors to handle the integration process.

Semantic Enrichment of Web Service Architecture

2010 ◽  
pp. 303-321
Author(s):  
Aicha Boubekeur ◽  
Mimoun Malki ◽  
Abdellah Chouarfia ◽  
Mostefa Belarbi
Keyword(s):  
Information System ◽  
Information Systems ◽  
Web Services ◽  
Data Integration ◽  
Web Service ◽  
Service Oriented Architecture ◽  
Operating Mode ◽  
Semantic Web Services ◽  
Service Architecture ◽  
Service Oriented

The SOA: Service Oriented Architecture is a paradigm which allows the unification in the approaches of integration of the information systems. This data integration of shared semantic description of handled by the services. This integration of the data is more flexible considering the limited number of the concepts used by the services. Therefore, architecture is suggested in order to reduce domain ontologies development and integration complexity. It allows also finding and automatic invocation of the services. Ontologies are integrated without doing major changes in operating mode of web services like HTTP, SOAP. This chapter presents an architecture which is a step towards its automation through the semantic web services without redefining the information system completely.

scholarly journals Selective Service Provenance in the VRESCo Runtime

2012 ◽  
pp. 372-394
Author(s):  
Anton Michlmayr ◽  
Florian Rosenberg ◽  
Philipp Leitner ◽  
Schahram Dustdar
Keyword(s):  
Performance Evaluation ◽  
Information Systems ◽  
Web Service ◽  
Scientific Workflows ◽  
Data Provenance ◽  
Provenance Information ◽  
Selective Service ◽  
Runtime Environment ◽  
Service Oriented ◽  
History Of

In general, provenance describes the origin and well-documented history of a given object. This notion has been applied in information systems, mainly to provide data provenance of scientific workflows. Similar to this, provenance in Service-oriented Computing has also focused on data provenance. However, the authors argue that in service-centric systems the origin and history of services is equally important. This paper presents an approach that addresses service provenance. The authors show how service provenance information can be collected and retrieved, and how security mechanisms guarantee integrity and access to this information, while also providing user-specific views on provenance. Finally, the paper gives a performance evaluation of the authors’ approach, which has been integrated into the VRESCo Web service runtime environment.

Geospatial Web Services

2011 ◽  
pp. 1-35 ◽  
Author(s):  
Peishing Zhao ◽  
Genong Yu ◽  
Liping Di
Keyword(s):  
Life Cycle ◽  
Information Systems ◽  
Web Services ◽  
Web Service ◽  
Service Oriented Architecture ◽  
Spatial Information ◽  
Geospatial Data ◽  
Spatial Information Systems ◽  
Service Oriented ◽  
Geospatial Web Services

As Web service technologies mature in recent years, a growing number of geospatial Web services designed to interoperate spatial information over the network have emerged. Geospatial Web services are changing the way in which spatial information systems and applications are designed, developed and deployed. This chapter introduces all aspects of geospatial Web services from service-oriented architecture to service implementation. It covers the life cycle of geospatial Web services in terms of geospatial interoperable standards, including publish, discovery, invocation and orchestration. To make geospatial Web services more intelligent, semantic issues about geospatial data and services are discussed here. Furthermore, the applications of standard-compliant geospatial Web service are also reviewed.

scholarly journals Selective Service Provenance in the VRESCo Runtime

2010 ◽  
Vol 7 (2) ◽  
pp. 65-86 ◽  
Author(s):  
Anton Michlmayr ◽  
Florian Rosenberg ◽  
Philipp Leitner ◽  
Schahram Dustdar
Keyword(s):  
Performance Evaluation ◽  
Information Systems ◽  
Web Service ◽  
Scientific Workflows ◽  
Data Provenance ◽  
Provenance Information ◽  
Selective Service ◽  
Runtime Environment ◽  
Service Oriented ◽  
History Of

In general, provenance describes the origin and well-documented history of a given object. This notion has been applied in information systems, mainly to provide data provenance of scientific workflows. Similar to this, provenance in Service-oriented Computing has also focused on data provenance. However, the authors argue that in service-centric systems the origin and history of services is equally important. This paper presents an approach that addresses service provenance. The authors show how service provenance information can be collected and retrieved, and how security mechanisms guarantee integrity and access to this information, while also providing user-specific views on provenance. Finally, the paper gives a performance evaluation of the authors’ approach, which has been integrated into the VRESCo Web service runtime environment.

XML-Based Toolkits for the Interoperability of Web Information Systems

2011 ◽  
pp. 91-110
Author(s):  
Christophe Nicolle ◽  
Kokou Yetongnon
Keyword(s):  
Information Systems ◽  
Data Integration ◽  
Web Sites ◽  
Data Models ◽  
Data Sources ◽  
On Demand ◽  
Web Information ◽  
Meta Level ◽  
Web Information Systems ◽  
Translation Scheme

This chapter presents a methodology and tools framework, called X-TIME, to support data integration via web sites. It is a data model translator toolkit based on a metamodel and XML technology that is aimed at facilitating the design of wrappers, semantic reconciliators or mediators. X-TIME is an adaptable semantics-oriented metamodel approach that takes into account important characteristics of interoperable information systems, including extensibility and composability. Extensibility requires a translation scheme that can easily integrate new data models while composability, which is the ability of an application to define dynamically the subset of data sources it needs, requires on-demand translation among a subset of data models. To meet these requirements, X-TIME is based on an extensible metamodel that defines a set of metatypes for representing meta-level semantic descriptors of data models that can be found in web sites. The metatypes are organized in a generalization hierarchy to capture semantic similarities between modeling concepts and correlate constituent data models of interoperable systems.

scholarly journals Penerapan Service Oriented Architecture Menggunakan Web Service Pada Aplikasi Perpustakaan Berbasis Android

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Ari Tunggul Sri Christanto ◽  
Rachel Kurniawati
Keyword(s):  
Information System ◽  
Information Systems ◽  
Web Services ◽  
Web Service ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Academic Activities ◽  
Library Book ◽  
Service Oriented ◽  
Academic Information

Abstract. Atma Jaya Yogyakarta University Library is one of the supporting units in academic activities. Currently the library has been using information systems to improve services to users and increase the effectiveness of business processes, in terms of dealing with the circulation of books. There are facts that the search of library book collection has not been optimal and there has not been a history facility for borrowing books by the users. Those problems can be solved by the use of Service Oriented Architecture (SOA), which integrates web service on android. The results of this study are android-based applications that implement Service Oriented Architecture (SOA) using web services to integrate the academic information system, library information system and employee information system. So that the exchange of data and information can run more easily and quickly.Keywords: Service Oriented Architecture, Android, Web Service, Book Collection, Library  Abstrak. Perpustakaan Universitas Atma Jaya Yogyakarta adalah salah satu unit pendukung dalam kegiatan akademis. Saat ini perpustakaan telah menggunakan sistem informasi untuk meningkatkan layanan kepada pengguna dan meningkatkan efektifitas proses bisnisnya, termasuk dalam hal menangani masalah sirkulasi buku. Namun terdapat permasalahan yaitu belum optimalnya pencarian koleksi buku perpustakaan dan belum ada fasilitas histori peminjaman buku oleh anggota. Permasalahan tersebut dapat diselesaikan dengan penggunaan Service Oriented Architecture, yaitu mengintegrasikan web service pada android. Hasil dari penelitian ini adalah aplikasi berbasis android yang menerapkan Service Oriented Architecture menggunakan web service untuk mengintegrasikan sistem informasi akademik, sistem informasi perpustakaan dan sistem informasi kepegawaian, sehingga pertukaran data dan informasi dapat semakin mudah dan cepat.Kata Kunci: Service Oriented Architecture, Android, Web Service, Koleksi Buku, Perpustakaan

CONCRETE SOLUTIONS FOR WEB SERVICES ADAPTABILITY USING POLICIES AND ASPECTS

2006 ◽  
Vol 15 (03) ◽  
pp. 415-438 ◽  
Author(s):  
RICARDO FERRAZ TOMAZ ◽  
MEHDI BEN HMIDA ◽  
VALERIE MONFORT
Keyword(s):  
Information Systems ◽  
Web Services ◽  
Web Service ◽  
Design Solution ◽  
Technical Solution ◽  
Loose Coupling ◽  
Aspect Oriented Programming ◽  
Service Oriented Architectures ◽  
Service Oriented ◽  
Service Behavior

Traditional middleware is usually developed on monolithic and non-evolving entities, resulting in a lack of flexibility and interoperability. Among current architectures, Service Oriented Architectures aim to easily develop more adaptable Information Systems. Most often, Web Service is the fitted technical solution which provides the required loose coupling to achieve such architectures. However, there is still much to be done in order to obtain a genuinely flawless Web Service, and current market implementations still do not provide adaptable Web Service behavior depending on the service contract. In this paper, we present our two last years of work toward a more adaptable SOA. We proposed two approaches that consider Aspect Oriented Programming (AOP) as a new design solution for Web Services. The two approaches enable us to glue new non-functional behaviors to a Web Service without going back to modify, recompile, retest and finally redeploy it.

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