Convergence of information and telecommunication networks leading to integration of voice, data and video services will bring new opportunities for users as well as service providers. With a growing number of services available on the market, dynamic discovery of services, their composition, selection, mediation as well as execution will be required. In this paper we show how voice and data services can be seamlessly integrated using existing client as well as server VoIP systems based on a widely used SIP signaling protocol and newly emerging technologies in semantic Web services. Within particular use case scenario, we describe all phases of the call set-up between two call participants. We show how semantic Web services technology can facilitate dynamic and optimal integration of voice and data services with different characteristics while at the same time conforming to users' needs and preferences.
{"title":"Semantic-enabled integration of voice and data services: telecommunication use case","authors":"T. Vitvar, J. Viskova","doi":"10.1109/ECOWS.2005.22","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.22","url":null,"abstract":"Convergence of information and telecommunication networks leading to integration of voice, data and video services will bring new opportunities for users as well as service providers. With a growing number of services available on the market, dynamic discovery of services, their composition, selection, mediation as well as execution will be required. In this paper we show how voice and data services can be seamlessly integrated using existing client as well as server VoIP systems based on a widely used SIP signaling protocol and newly emerging technologies in semantic Web services. Within particular use case scenario, we describe all phases of the call set-up between two call participants. We show how semantic Web services technology can facilitate dynamic and optimal integration of voice and data services with different characteristics while at the same time conforming to users' needs and preferences.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114265166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We have designed and implemented a framework assisting client-side applications to utilize asynchronous Web services that deliver results by calling back the applications in the context of enterprise security. This framework can support a number of rich features such as the single-request/multiple-response (SRMR) message exchange pattern, resumable clients, intra-enterprise user and terminal mobility, and flexible interaction modes for client applications to communicate with asynchronous Web services. Practical deployment of this framework in a number of cases has illustrated that this framework can effectively minimize development efforts in facilitating client applications to use Web services with callbacks.
{"title":"A client-side framework enabling callbacks from Web services","authors":"Michael Ruth, Feng Lin, S. Tu","doi":"10.1109/ECOWS.2005.1","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.1","url":null,"abstract":"We have designed and implemented a framework assisting client-side applications to utilize asynchronous Web services that deliver results by calling back the applications in the context of enterprise security. This framework can support a number of rich features such as the single-request/multiple-response (SRMR) message exchange pattern, resumable clients, intra-enterprise user and terminal mobility, and flexible interaction modes for client applications to communicate with asynchronous Web services. Practical deployment of this framework in a number of cases has illustrated that this framework can effectively minimize development efforts in facilitating client applications to use Web services with callbacks.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128749754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Provision of services within a virtual framework for resource sharing across institutional boundaries has become an active research area. Many such services encode access to computational and data resources, comprising single machines to computational clusters. Such services can also be informational, and integrate different resources within an institution. Consequently, we envision a service rich environment in the future, where service consumers are represented by intelligent agents. If interaction between agents is automated, it is necessary for these agents to be able to automatically discover services and choose between a set of equivalent (or similar) services. In such a scenario trust serves as a benchmark to differentiate between services. In this paper we introduce a novel framework for automated service discovery and selection of Web Services based on a user's trust policy. The framework is validated by a case study of data mining Web Services and is evaluated by an empirical experiment.
{"title":"A cognitive trust-based approach for Web service discovery and selection","authors":"Ali Shaikh Ali, S. Ludwig, O. Rana","doi":"10.1109/ECOWS.2005.2","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.2","url":null,"abstract":"Provision of services within a virtual framework for resource sharing across institutional boundaries has become an active research area. Many such services encode access to computational and data resources, comprising single machines to computational clusters. Such services can also be informational, and integrate different resources within an institution. Consequently, we envision a service rich environment in the future, where service consumers are represented by intelligent agents. If interaction between agents is automated, it is necessary for these agents to be able to automatically discover services and choose between a set of equivalent (or similar) services. In such a scenario trust serves as a benchmark to differentiate between services. In this paper we introduce a novel framework for automated service discovery and selection of Web Services based on a user's trust policy. The framework is validated by a case study of data mining Web Services and is evaluated by an empirical experiment.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115529306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reto Krummenacher, Martin Hepp, A. Polleres, C. Bussler, D. Fensel
A core paradigm of the Web is information exchange via persistent publication, i.e., one party publishes a piece of information on the Web, and any other party who knows the location of the resource can retrieve and process the information at any later point in time and without the need for synchronization with the original publisher. This functionality significantly contributed to the scalability of the Web, since it reduced the amount of interaction between the sender and the recipient. Current approaches of extending the World Wide Web from a collection of human-readable information, connecting humans, into a network that connects computing devices based on machine-processable semantics of data lack this feature and are instead based on tightly-coupled message exchange. In this paper, we (1) show that Web services based on the message-exchange paradigm are not fully compliant with core paradigms of the Web itself, (2) outline how the idea of persistent publication as a communication paradigm can be beneficially applied to Web services, and (3) propose a minimal architecture for fully Web-enabled semantic Web services based on publication in shared information spaces, which we call triple space computing.
{"title":"WWW or What is Wrong with Web services","authors":"Reto Krummenacher, Martin Hepp, A. Polleres, C. Bussler, D. Fensel","doi":"10.1109/ECOWS.2005.30","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.30","url":null,"abstract":"A core paradigm of the Web is information exchange via persistent publication, i.e., one party publishes a piece of information on the Web, and any other party who knows the location of the resource can retrieve and process the information at any later point in time and without the need for synchronization with the original publisher. This functionality significantly contributed to the scalability of the Web, since it reduced the amount of interaction between the sender and the recipient. Current approaches of extending the World Wide Web from a collection of human-readable information, connecting humans, into a network that connects computing devices based on machine-processable semantics of data lack this feature and are instead based on tightly-coupled message exchange. In this paper, we (1) show that Web services based on the message-exchange paradigm are not fully compliant with core paradigms of the Web itself, (2) outline how the idea of persistent publication as a communication paradigm can be beneficially applied to Web services, and (3) propose a minimal architecture for fully Web-enabled semantic Web services based on publication in shared information spaces, which we call triple space computing.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127589351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Businesses are changing rapidly and organizations tend to act worldwide and are increasingly becoming distributed over the continents. As a consequence, distributed software systems have to keep track with rapidly changing markets. Business rules provide support for capturing some knowledge that changes frequently. Current business rule systems manage and execute business rules, however, typically lack support for increasingly distributed software systems, in particular, with respect to flexibility and reuse of business rules across distributed rule engines. In this paper we propose a service-oriented distributed business rules system that manages and deploys business rules to various business rule engines. Furthermore, we present the design and some implementation aspects of a service-oriented business rules system based on WS-coordination. The system supports management and deployment of business rules to various business rules engines. Furthermore, we present a framework that unifies the access to several heterogeneous business rules engines, and we propose a solution that automatically generates and provisions Web services for executing business rules managed by a business rule engine.
{"title":"Towards a distributed service-oriented business rules system","authors":"Florian Rosenberg, S. Dustdar","doi":"10.1109/ECOWS.2005.28","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.28","url":null,"abstract":"Businesses are changing rapidly and organizations tend to act worldwide and are increasingly becoming distributed over the continents. As a consequence, distributed software systems have to keep track with rapidly changing markets. Business rules provide support for capturing some knowledge that changes frequently. Current business rule systems manage and execute business rules, however, typically lack support for increasingly distributed software systems, in particular, with respect to flexibility and reuse of business rules across distributed rule engines. In this paper we propose a service-oriented distributed business rules system that manages and deploys business rules to various business rule engines. Furthermore, we present the design and some implementation aspects of a service-oriented business rules system based on WS-coordination. The system supports management and deployment of business rules to various business rules engines. Furthermore, we present a framework that unifies the access to several heterogeneous business rules engines, and we propose a solution that automatically generates and provisions Web services for executing business rules managed by a business rule engine.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121844562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li Kuang, Shuiguang Deng, Ying Li, Wei Shi, Zhaohui Wu
With the extensive applications of Web services on the Internet, to locate target services in an accurate and efficient way becomes increasingly difficult. At present, semantic Web service is regarded as the most promising approach to address the challenge. In this paper, an ontology service description language and a query language, OSDL and OSQL are proposed respectively, and then a service matchmaking algorithm based on interface semantics is proposed. The problem of service matchmaking can be attributed to the similarity between the semantic pair, and the similarity is the quantization of their relationship, which is discovered through reasoning on ontology. Unlike the existing semantics-based service matchmaking algorithms, which focus on the relationships among the successors and ancestors of ontology classes, the proposed one also pays attention to the comparability among classes and their property classes. The experiment data indicate that it is worthwhile to take the point into consideration to receive a higher recall and precision.
{"title":"Exploring semantic technologies in service matchmaking","authors":"Li Kuang, Shuiguang Deng, Ying Li, Wei Shi, Zhaohui Wu","doi":"10.1109/ECOWS.2005.14","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.14","url":null,"abstract":"With the extensive applications of Web services on the Internet, to locate target services in an accurate and efficient way becomes increasingly difficult. At present, semantic Web service is regarded as the most promising approach to address the challenge. In this paper, an ontology service description language and a query language, OSDL and OSQL are proposed respectively, and then a service matchmaking algorithm based on interface semantics is proposed. The problem of service matchmaking can be attributed to the similarity between the semantic pair, and the similarity is the quantization of their relationship, which is discovered through reasoning on ontology. Unlike the existing semantics-based service matchmaking algorithms, which focus on the relationships among the successors and ancestors of ontology classes, the proposed one also pays attention to the comparability among classes and their property classes. The experiment data indicate that it is worthwhile to take the point into consideration to receive a higher recall and precision.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129624801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Application frameworks are widely used in software engineering to support reuse by capturing the shared architecture among a family of applications. Their role in Web service construction has, however, been mostly ignored. Reuse in general has rather been considered in the context of Web service composition than as a means to use existing implementations to build new services with related functionality. In this paper we discuss reuse in Web service development, focusing on families of Web services that share a common architecture and a set of functionalities. Techniques supporting reuse rely on identifying and managing variation points. We propose a categorization of possible variation points in service endpoints, WSDI descriptions, and business logic. A pattern-based approach for managing variation and specifying a Web service framework to an actual service application is introduced. The approach is applied to specify a sample Web service framework.
{"title":"Pattern-based variability management in Web service development","authors":"Juanjuan Jiang, A. Ruokonen, Tarja Systä","doi":"10.1109/ECOWS.2005.19","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.19","url":null,"abstract":"Application frameworks are widely used in software engineering to support reuse by capturing the shared architecture among a family of applications. Their role in Web service construction has, however, been mostly ignored. Reuse in general has rather been considered in the context of Web service composition than as a means to use existing implementations to build new services with related functionality. In this paper we discuss reuse in Web service development, focusing on families of Web services that share a common architecture and a set of functionalities. Techniques supporting reuse rely on identifying and managing variation points. We propose a categorization of possible variation points in service endpoints, WSDI descriptions, and business logic. A pattern-based approach for managing variation and specifying a Web service framework to an actual service application is introduced. The approach is applied to specify a sample Web service framework.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131635208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enterprise digital dashboard (EDD) is an effective tool for executives to get a top level view of their enterprise as well as closely linked partners. Decision makers need to have easy access to data such as total sales per month, inventory status and a number of other key performance indicators (KPI). These business needs are not in sync with the technological challenges such as the presence of disparate enterprise systems (e.g. ERP, SCM, CRM, etc.). Web service is an effective technology to link disparate systems. This paper discusses a solution based on Web services in the context of EDD. We explain the solution with respect to a business scenario and propose a reference architecture for the same.
{"title":"Web services, enterprise digital dashboards and shared data services: a proposed framework","authors":"Jaishankar Ganesh, S. Anand","doi":"10.1109/ECOWS.2005.29","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.29","url":null,"abstract":"Enterprise digital dashboard (EDD) is an effective tool for executives to get a top level view of their enterprise as well as closely linked partners. Decision makers need to have easy access to data such as total sales per month, inventory status and a number of other key performance indicators (KPI). These business needs are not in sync with the technological challenges such as the presence of disparate enterprise systems (e.g. ERP, SCM, CRM, etc.). Web service is an effective technology to link disparate systems. This paper discusses a solution based on Web services in the context of EDD. We explain the solution with respect to a business scenario and propose a reference architecture for the same.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117052462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Current Web services approaches have many limitations, especially with description, discovery and integration mechanisms. In this paper we present a novel software architecture called aspect-oriented Web services (AOWS) which addresses these problems. AOWS uses descriptions of cross-cutting concerns between Web services to give more complete descriptions of services, supporting richer dynamic discovery and seamless integration. We describe our architecture, a formal specification of it and an implementation using .NET Web services technology.
{"title":"An architecture for developing aspect-oriented Web services","authors":"Santokh Singh, J. Grundy, J. Hosking, Jing Sun","doi":"10.1109/ECOWS.2005.7","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.7","url":null,"abstract":"Current Web services approaches have many limitations, especially with description, discovery and integration mechanisms. In this paper we present a novel software architecture called aspect-oriented Web services (AOWS) which addresses these problems. AOWS uses descriptions of cross-cutting concerns between Web services to give more complete descriptions of services, supporting richer dynamic discovery and seamless integration. We describe our architecture, a formal specification of it and an implementation using .NET Web services technology.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130685281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Meneklis, A. Kaliontzoglou, C. Douligeris, D. Polemi
In order for e-government to be successful there is a strong requirement for approaches that are based on widely accepted technical standards and formal design methods. In this paper, we describe the architecture of the eMayor platform, a Web services based platform that is built as a holistic service framework for the deployment and delivery of e-government enterprise services for European municipalities. The design of the platform is based on the ISO/RM-ODP standard. The goal of the paper is to present both a general architectural overview of the platform and its services, along with the engineering and technology aspects of the architecture as instances of the engineering and technology viewpoints of the RM-ODP standard.
{"title":"Engineering and technology aspects of an e-government architecture based on Web services","authors":"B. Meneklis, A. Kaliontzoglou, C. Douligeris, D. Polemi","doi":"10.1109/ECOWS.2005.11","DOIUrl":"https://doi.org/10.1109/ECOWS.2005.11","url":null,"abstract":"In order for e-government to be successful there is a strong requirement for approaches that are based on widely accepted technical standards and formal design methods. In this paper, we describe the architecture of the eMayor platform, a Web services based platform that is built as a holistic service framework for the deployment and delivery of e-government enterprise services for European municipalities. The design of the platform is based on the ISO/RM-ODP standard. The goal of the paper is to present both a general architectural overview of the platform and its services, along with the engineering and technology aspects of the architecture as instances of the engineering and technology viewpoints of the RM-ODP standard.","PeriodicalId":265552,"journal":{"name":"Third European Conference on Web Services (ECOWS'05)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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