Pub Date : 2008-09-23DOI: 10.1109/SERVICES-2.2008.54
M. Luo, Liang-Jie Zhang
This tutorial will take the audience through an "aggregated" SOA engagement and discuss key processes, activities, and deliverables through the entire life cycle, especially in service modeling, realization, integration through an enterprise service bus and governance. Best practices and some anti-patterns will also be presented and discussed. It is mostly based on some of the speakers' pioneering project practices and lessons learned since SOA and Web service's inception.
{"title":"Practical SOA: Service Modeling, Enterprise Service Bus and Governance","authors":"M. Luo, Liang-Jie Zhang","doi":"10.1109/SERVICES-2.2008.54","DOIUrl":"https://doi.org/10.1109/SERVICES-2.2008.54","url":null,"abstract":"This tutorial will take the audience through an \"aggregated\" SOA engagement and discuss key processes, activities, and deliverables through the entire life cycle, especially in service modeling, realization, integration through an enterprise service bus and governance. Best practices and some anti-patterns will also be presented and discussed. It is mostly based on some of the speakers' pioneering project practices and lessons learned since SOA and Web service's inception.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132256197","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}
This paper reports several key challenges and solutions when we apply Web 2.0 mashup technology to build a university-oriented services portal. A two-layer mashup service model is proposed as the underlying basis to support multiple granularities of services mashup. We explore a caching technique to facilitate personalizable services requests. We also report our preliminary practice of exploiting Facebook as a social relationship data source.
{"title":"Design and Development of a University-Oriented Personalizable Web 2.0 Mashup Portal","authors":"Jia Zhang, M. Karim, Karthik Akula, R. Ariga","doi":"10.1109/ICWS.2008.138","DOIUrl":"https://doi.org/10.1109/ICWS.2008.138","url":null,"abstract":"This paper reports several key challenges and solutions when we apply Web 2.0 mashup technology to build a university-oriented services portal. A two-layer mashup service model is proposed as the underlying basis to support multiple granularities of services mashup. We explore a caching technique to facilitate personalizable services requests. We also report our preliminary practice of exploiting Facebook as a social relationship data source.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133819161","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}
In this paper, we describe an approach to discover the control flow graph of Web services for Web services analysis, verification, and testing. For this purpose, three novel methods are proposed. First, we introduce a domain independent RDF Schemas for concise resource oriented functional specification of Web services operations. Secondly, we describe the use of RDF entailment to accurately derive the control flow from the functional specifications. We developed a transformation from RDF graph to SPARQL query to facilitate the RDF entailment which offers flexibility and extensibility over the direct graph matching approach. The third is a linkage based Web services modeling and analysis framework, within which we apply an improved Google PageRank algorithm to efficiently calculate test coverage potential using the derived control flow. We justify that the proposed linkage based Web services modeling and analysis framework is particularly suitable for testing Web services. A prototype of the proposed methods has been implemented and tested on some standard based Web services. Experimental results show that the control flow analysis is quite efficient and accurate, and the coverage based test results of the proposed approach are very promising.
{"title":"Control Flow Analysis and Coverage Driven Testing for Web Services","authors":"Li Li, W. Chou, Weiping Guo","doi":"10.1109/ICWS.2008.104","DOIUrl":"https://doi.org/10.1109/ICWS.2008.104","url":null,"abstract":"In this paper, we describe an approach to discover the control flow graph of Web services for Web services analysis, verification, and testing. For this purpose, three novel methods are proposed. First, we introduce a domain independent RDF Schemas for concise resource oriented functional specification of Web services operations. Secondly, we describe the use of RDF entailment to accurately derive the control flow from the functional specifications. We developed a transformation from RDF graph to SPARQL query to facilitate the RDF entailment which offers flexibility and extensibility over the direct graph matching approach. The third is a linkage based Web services modeling and analysis framework, within which we apply an improved Google PageRank algorithm to efficiently calculate test coverage potential using the derived control flow. We justify that the proposed linkage based Web services modeling and analysis framework is particularly suitable for testing Web services. A prototype of the proposed methods has been implemented and tested on some standard based Web services. Experimental results show that the control flow analysis is quite efficient and accurate, and the coverage based test results of the proposed approach are very promising.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133113903","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}
Augmenting web services with explicit semantics forms the foundation of Service Oriented Architectures (SOAs) automation. As more and more Semantic Web Services (SWSs) are deployed, similar SWSs could have quite different quality-of-service (QoS) levels. The QoS-aware discovery becomes an important challenge. While some efforts try to solve it via Constraint Programming (CP), they suffer from the purely syntactic matchmaking method. Furthermore, the construction of constraints and the selection of services are completely dependent on the literal translation from QoS descriptions, which increase obstacles to actually apply CP. In this paper, we propose a semantic QoS-aware framework for SWSs discovery by combining the semantic matchmaking and CP. Initially, a QoS ontology is presented to define QoS data into service descriptions. Then the ontology reasoning is adopted to change previous syntactic matchmaking into a semantic way. Through confirming the compatibility of concepts, complex QoS conditions are solved as constraints and a selection algorithm is proposed to obtain the optimal offer. Finally, the prototype implementation of our framework is discussed and a SWSs discovery case is used to illustrate the comprehensive discovery process.
{"title":"A Semantic QoS-Aware Discovery Framework for Web Services","authors":"Qian Ma, Hao Wang, Ying Li, G. Xie, Feng Liu","doi":"10.1109/ICWS.2008.44","DOIUrl":"https://doi.org/10.1109/ICWS.2008.44","url":null,"abstract":"Augmenting web services with explicit semantics forms the foundation of Service Oriented Architectures (SOAs) automation. As more and more Semantic Web Services (SWSs) are deployed, similar SWSs could have quite different quality-of-service (QoS) levels. The QoS-aware discovery becomes an important challenge. While some efforts try to solve it via Constraint Programming (CP), they suffer from the purely syntactic matchmaking method. Furthermore, the construction of constraints and the selection of services are completely dependent on the literal translation from QoS descriptions, which increase obstacles to actually apply CP. In this paper, we propose a semantic QoS-aware framework for SWSs discovery by combining the semantic matchmaking and CP. Initially, a QoS ontology is presented to define QoS data into service descriptions. Then the ontology reasoning is adopted to change previous syntactic matchmaking into a semantic way. Through confirming the compatibility of concepts, complex QoS conditions are solved as constraints and a selection algorithm is proposed to obtain the optimal offer. Finally, the prototype implementation of our framework is discussed and a SWSs discovery case is used to illustrate the comprehensive discovery process.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132971149","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}
The aim of this paper is to reveal some intrinsic disadvantages of the current version of UDDI standard, which create problems in using it as a standard for private, in-house storage of enterprise services. Examples include: access control mechanisms in UDDI, limited rich queries capability, inappropriate mapping of Web service artifacts into UDDI entities, impossibility of managing classification system values, etc. For each disadvantage we consider, we give an illustrative example of its impact in an enterprise service environment. To overcome these disadvantages, some service registry implementations, based on UDDI introduce proprietary extensions to the standard, or embed additional programmatic logic in their client modules of UDDI, which decreases interoperability between them.
{"title":"Interoperability among Service Registry Implementations: Is UDDI Standard Enough?","authors":"A. Mintchev","doi":"10.1109/ICWS.2008.70","DOIUrl":"https://doi.org/10.1109/ICWS.2008.70","url":null,"abstract":"The aim of this paper is to reveal some intrinsic disadvantages of the current version of UDDI standard, which create problems in using it as a standard for private, in-house storage of enterprise services. Examples include: access control mechanisms in UDDI, limited rich queries capability, inappropriate mapping of Web service artifacts into UDDI entities, impossibility of managing classification system values, etc. For each disadvantage we consider, we give an illustrative example of its impact in an enterprise service environment. To overcome these disadvantages, some service registry implementations, based on UDDI introduce proprietary extensions to the standard, or embed additional programmatic logic in their client modules of UDDI, which decreases interoperability between them.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116600419","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}
The execution of composite web services with WS-BPEL relies on externally autonomous Web services. This implies the need to constantly monitor the running behavior of the involved parties. Moreover, monitoring the execution of such processes is critical to enforce business policies and meet reliability goals. This paper proposes a stateful aspect extension to WS-BPEL, as a solution to support flexible behavior pattern monitoring for composite Web services. Specifically, in the stateful aspect, history-based pointcut specifies the pattern of interest within a range, while advice describes the associated action to manage the process if the specified pattern occurs. We also present its implementation based on finite state automata through runtime weaving mechanism. Our experiments indicate the proposed monitoring approach incurs minimal overhead.
{"title":"Flexible Pattern Monitoring for WS-BPEL through Stateful Aspect Extension","authors":"Guoquan Wu, Jun Wei, Tao Huang","doi":"10.1109/ICWS.2008.27","DOIUrl":"https://doi.org/10.1109/ICWS.2008.27","url":null,"abstract":"The execution of composite web services with WS-BPEL relies on externally autonomous Web services. This implies the need to constantly monitor the running behavior of the involved parties. Moreover, monitoring the execution of such processes is critical to enforce business policies and meet reliability goals. This paper proposes a stateful aspect extension to WS-BPEL, as a solution to support flexible behavior pattern monitoring for composite Web services. Specifically, in the stateful aspect, history-based pointcut specifies the pattern of interest within a range, while advice describes the associated action to manage the process if the specified pattern occurs. We also present its implementation based on finite state automata through runtime weaving mechanism. Our experiments indicate the proposed monitoring approach incurs minimal overhead.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116908706","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}
In service computing, the behavior of a service may evolve. When an organization develops a service-oriented application in which certain services are provided by external partners, the organization should address the problem of uninformed behavior evolution of external services. This paper proposes an adaptive framework that bars problematic external services to be used in the service-oriented application of an organization. We use dynamic WSDL information in public service registries to approximate a snapshot of a network of services, and apply link analysis on the snapshot to identify services that are popularly used by different service consumers at the moment. As such, service composition can be strategically formed using the highly referenced services. We evaluate our proposal through a simulation study. The results show that, in terms of the number of failures experienced by service consumers, our proposal significantly outperforms the random approach in selecting reliable services to form service compositions.
{"title":"An Adaptive Service Selection Approach to Service Composition","authors":"Lijun Mei, W. Chan, T. Tse","doi":"10.1109/ICWS.2008.22","DOIUrl":"https://doi.org/10.1109/ICWS.2008.22","url":null,"abstract":"In service computing, the behavior of a service may evolve. When an organization develops a service-oriented application in which certain services are provided by external partners, the organization should address the problem of uninformed behavior evolution of external services. This paper proposes an adaptive framework that bars problematic external services to be used in the service-oriented application of an organization. We use dynamic WSDL information in public service registries to approximate a snapshot of a network of services, and apply link analysis on the snapshot to identify services that are popularly used by different service consumers at the moment. As such, service composition can be strategically formed using the highly referenced services. We evaluate our proposal through a simulation study. The results show that, in terms of the number of failures experienced by service consumers, our proposal significantly outperforms the random approach in selecting reliable services to form service compositions.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116200754","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}
Web services have been widely used to support context-aware applications for context information retrieval in a ubiquitous environment. However, most of the existing research efforts in this field only focus on using SOAP web service as an enabling technology. In this paper, we compare REST and SOAP web services for supporting ubiquitous environments. We describe our approaches to deploy an open ubiquitous computing environment using REST style services along with semantic web and mobile technologies. We also discuss an example context-aware application developed for the environment and show how REST style services can contribute in moving ubiquitous computing technologies into the real world.
{"title":"Realizing an Open Ubiquitous Environment in a RESTful Way","authors":"Yong Liu, Kay Connelly","doi":"10.1109/ICWS.2008.64","DOIUrl":"https://doi.org/10.1109/ICWS.2008.64","url":null,"abstract":"Web services have been widely used to support context-aware applications for context information retrieval in a ubiquitous environment. However, most of the existing research efforts in this field only focus on using SOAP web service as an enabling technology. In this paper, we compare REST and SOAP web services for supporting ubiquitous environments. We describe our approaches to deploy an open ubiquitous computing environment using REST style services along with semantic web and mobile technologies. We also discuss an example context-aware application developed for the environment and show how REST style services can contribute in moving ubiquitous computing technologies into the real world.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123251237","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 propose the Service Control Technology for the Web-telecom coordination service, and we show our proposal effectiveness. In the NGN (Next-Generation Network), many new applications are expected using open network interfaces. In particular, we study the SDP (Service Delivery Platform) for coordinating existing Internet services and telecom services. In this paper, we propose the Service control technology, which handles common process required in the telecom trigger Web-telecom coordination service. Our method achieves improvement in usability of telecom user, reliability of the coordination service, and processing performance. We implement our method two types (Proxy type, Callable type) and measured processing performance. In comparison to related technologies, we show our method effectiveness.
{"title":"Development of Service Control Server for Web-Telecom Coordination Service","authors":"Y. Yamato, H. Ohnishi, H. Sunaga","doi":"10.1109/ICWS.2008.17","DOIUrl":"https://doi.org/10.1109/ICWS.2008.17","url":null,"abstract":"We propose the Service Control Technology for the Web-telecom coordination service, and we show our proposal effectiveness. In the NGN (Next-Generation Network), many new applications are expected using open network interfaces. In particular, we study the SDP (Service Delivery Platform) for coordinating existing Internet services and telecom services. In this paper, we propose the Service control technology, which handles common process required in the telecom trigger Web-telecom coordination service. Our method achieves improvement in usability of telecom user, reliability of the coordination service, and processing performance. We implement our method two types (Proxy type, Callable type) and measured processing performance. In comparison to related technologies, we show our method effectiveness.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"57 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124339840","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}
The hybrid semantic Web service matchmaker WSMOMX applies different matching filters to retrieve WSML service descriptions that are semantically relevant to a given query with respect to seven degrees of hybrid matching. These degrees are recursively computed by aggregated valuations of ontology-based type matching, logical constraint and relation matching, and syntactic similarity as well. In this paper, we provide results of our experimental evaluation of the performance of WSMO-MX. In summary, it turned out that hybrid semantic matching of WSML-MX services can outperform logic-based only semantic service matching.
{"title":"Evaluation of WSML Service Retrieval with WSMO-MX","authors":"M. Klusch, Patrick Kapahnke, Frank Kaufer","doi":"10.1109/ICWS.2008.38","DOIUrl":"https://doi.org/10.1109/ICWS.2008.38","url":null,"abstract":"The hybrid semantic Web service matchmaker WSMOMX applies different matching filters to retrieve WSML service descriptions that are semantically relevant to a given query with respect to seven degrees of hybrid matching. These degrees are recursively computed by aggregated valuations of ontology-based type matching, logical constraint and relation matching, and syntactic similarity as well. In this paper, we provide results of our experimental evaluation of the performance of WSMO-MX. In summary, it turned out that hybrid semantic matching of WSML-MX services can outperform logic-based only semantic service matching.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125243912","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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