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}
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}
This paper introduces the concept of temporal logic of actions (short for TLA), with which we can formally specify the behavior of a service, and compose Web services. The approach is demonstrated by an example. A services composition algorithm is presented.
{"title":"Specify and Compose Web Services by TLA","authors":"Hongbing Wang, Hui Liu, Xiaohui Guo","doi":"10.1109/ICWS.2008.72","DOIUrl":"https://doi.org/10.1109/ICWS.2008.72","url":null,"abstract":"This paper introduces the concept of temporal logic of actions (short for TLA), with which we can formally specify the behavior of a service, and compose Web services. The approach is demonstrated by an example. A services composition algorithm is presented.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"41 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":"120936991","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}
WS-Security is an essential component of the Web services protocol stack. WS-Security provides end-to-end security properties (integrity, confidentiality, and authentication) through open XML standards. End-to-end message security assures the participation of non-secure transport intermediaries in message exchanges, which is a key advantage for Web-based systems and service-oriented architectures. However, point-to-point message security based on TLS (transport layer security) is known to significantly outperform WS-Security. In this paper we analyze the overhead of the WS-Security protocol processing stages and evaluate existing and new techniques for WS-Security signature performance optimizations to speed up end-to-end message integrity assurance and authentication.
{"title":"An Overview and Evaluation of Web Services Security Performance Optimizations","authors":"Robert A. van Engelen, Wei Zhang","doi":"10.1109/ICWS.2008.102","DOIUrl":"https://doi.org/10.1109/ICWS.2008.102","url":null,"abstract":"WS-Security is an essential component of the Web services protocol stack. WS-Security provides end-to-end security properties (integrity, confidentiality, and authentication) through open XML standards. End-to-end message security assures the participation of non-secure transport intermediaries in message exchanges, which is a key advantage for Web-based systems and service-oriented architectures. However, point-to-point message security based on TLS (transport layer security) is known to significantly outperform WS-Security. In this paper we analyze the overhead of the WS-Security protocol processing stages and evaluate existing and new techniques for WS-Security signature performance optimizations to speed up end-to-end message integrity assurance and authentication.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"1 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":"130628330","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 many decades, many organizations, especially large consulting companies, have been designing, implementing and managing business solutions for every industry around the globe. But due to numerous limitations in process, tooling and skills, most of those solutions were made very specific to individual industry and client needs at its early design stage. Therefore, reuse and more importantly, managing the ever changing business requirements, become almost impossible. Service-orientation and architecture, model-driven business development provides us a new and powerful approach to facilitate asset based industry solution design and development. To further accelerate this, this tutorial will discuss an innovative approach that take advantage of many proven best software engineering practices, from object/component based technology, meta-data driven architecture types (archetypes) that are used to model the common structural and in some cases non-structural business entities such as customer, product, payment, etc. In order to address the consequences introduced by abstracting those common elements out of the specific industry model and be able to enable easy and meta-data based transformation, we properly decompose business components/services into a multi-layered business architecture. Therefore, process/components/services can be decomposed accordingly to facilitate the decomposition and abstraction, while maintaining certain level of necessary traceability across various artifacts. In the realization phase, existing assets/operational systems will be mapped and transformed to the required business components and services to best leverage those existing valuable industry/client investments. To support such a SOA based, model and business driven development process, existing tooling, especially the necessary transformation and integration capability, needs to be significantly enhanced. This tutorial will also present some recommendation based on some recent design and implementation, and they could be used to guide future tooling alignment and integration effort across software modeling, implementation and solution products. In addition, we will present how to leverage existing internal or external assets or product offerings and the open industry reference models and standards (such as ACCORD, ebXML, ARTS/IxRetail). This work is based on authors' collective experience in leading the large end-to-end client engagements across many industries, while promoting various industry leading software engineering best practices.
{"title":"Common Business Components and Services toward More Agile and Flexible Industry Solutions and Assets","authors":"M. Luo","doi":"10.1109/ICWS.2008.147","DOIUrl":"https://doi.org/10.1109/ICWS.2008.147","url":null,"abstract":"In many decades, many organizations, especially large consulting companies, have been designing, implementing and managing business solutions for every industry around the globe. But due to numerous limitations in process, tooling and skills, most of those solutions were made very specific to individual industry and client needs at its early design stage. Therefore, reuse and more importantly, managing the ever changing business requirements, become almost impossible. Service-orientation and architecture, model-driven business development provides us a new and powerful approach to facilitate asset based industry solution design and development. To further accelerate this, this tutorial will discuss an innovative approach that take advantage of many proven best software engineering practices, from object/component based technology, meta-data driven architecture types (archetypes) that are used to model the common structural and in some cases non-structural business entities such as customer, product, payment, etc. In order to address the consequences introduced by abstracting those common elements out of the specific industry model and be able to enable easy and meta-data based transformation, we properly decompose business components/services into a multi-layered business architecture. Therefore, process/components/services can be decomposed accordingly to facilitate the decomposition and abstraction, while maintaining certain level of necessary traceability across various artifacts. In the realization phase, existing assets/operational systems will be mapped and transformed to the required business components and services to best leverage those existing valuable industry/client investments. To support such a SOA based, model and business driven development process, existing tooling, especially the necessary transformation and integration capability, needs to be significantly enhanced. This tutorial will also present some recommendation based on some recent design and implementation, and they could be used to guide future tooling alignment and integration effort across software modeling, implementation and solution products. In addition, we will present how to leverage existing internal or external assets or product offerings and the open industry reference models and standards (such as ACCORD, ebXML, ARTS/IxRetail). This work is based on authors' collective experience in leading the large end-to-end client engagements across many industries, while promoting various industry leading software engineering best practices.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"1 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":"130667270","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}
Thanks to the advent of smart devices and the emergence of 3G/4G wireless technologies, services over mobile phones are becoming in many respects similar to those available over the PC based internet. Indeed mobile Web-based services, such as search, maps, presence, messaging, emails, productivity, social networking, and entertainment are becoming available in high-end phones from several device manufacturers. Mobile computing, however, promises richer applications and services based on location and context. Web technologies are being adapted and extended to support emerging mobile Internet services. However, location based mobile services present new significant challenges in terms of implementation and management complexity. In this presentation we will discuss the business trends of mobile services. Through a discussion of current projects at IBM Research, we will also present examples of the technology trends supporting scalable location based services.
{"title":"Mobile Services Business and Technology Trends","authors":"C. Gonzales","doi":"10.1109/ICWS.2008.142","DOIUrl":"https://doi.org/10.1109/ICWS.2008.142","url":null,"abstract":"Thanks to the advent of smart devices and the emergence of 3G/4G wireless technologies, services over mobile phones are becoming in many respects similar to those available over the PC based internet. Indeed mobile Web-based services, such as search, maps, presence, messaging, emails, productivity, social networking, and entertainment are becoming available in high-end phones from several device manufacturers. Mobile computing, however, promises richer applications and services based on location and context. Web technologies are being adapted and extended to support emerging mobile Internet services. However, location based mobile services present new significant challenges in terms of implementation and management complexity. In this presentation we will discuss the business trends of mobile services. Through a discussion of current projects at IBM Research, we will also present examples of the technology trends supporting scalable location based services.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"27 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":"131200525","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 article proposes a unified methodology for designing asynchronous SOA (Service-Oriented Architecture) based on the asynchronous messaging models and patterns. Conventional SOA focuses on synchronous messaging. Although asynchronous messaging provides much efficient and productive way to coordinate services, design of aSOA (asynchronous SOA) is far more complicated due to the variety of messaging and architecture while assuring behavioral consistency of architecture. This paper proposes a model-driven design methodology for aSOA. The methodology is based on aMEPs (Asynchronous Message Exchange Patterns) identified by classifying the messaging in terms of behavioral concerns. Based on the meta-model of aSOA, a set of aSOA patterns is generated by composing aMEPs. Then, an aSOA pattern is selected and transformed to a platform specific aSOA on top of Web services standards. We successfully implemented an aSOA on Apache Axis, which enables to asynchronous messaging of SOAP over SMTP. We demonstrated that conventional methods are subsets of the proposed methodology, which is the major contribution of this work.
{"title":"A Unified Design Method of Asynchronous Service-Oriented Architecture Based on the Models and Patterns of Asynchronous Message Exchanges","authors":"M. Aoyama, A. Mori","doi":"10.1109/ICWS.2008.88","DOIUrl":"https://doi.org/10.1109/ICWS.2008.88","url":null,"abstract":"This article proposes a unified methodology for designing asynchronous SOA (Service-Oriented Architecture) based on the asynchronous messaging models and patterns. Conventional SOA focuses on synchronous messaging. Although asynchronous messaging provides much efficient and productive way to coordinate services, design of aSOA (asynchronous SOA) is far more complicated due to the variety of messaging and architecture while assuring behavioral consistency of architecture. This paper proposes a model-driven design methodology for aSOA. The methodology is based on aMEPs (Asynchronous Message Exchange Patterns) identified by classifying the messaging in terms of behavioral concerns. Based on the meta-model of aSOA, a set of aSOA patterns is generated by composing aMEPs. Then, an aSOA pattern is selected and transformed to a platform specific aSOA on top of Web services standards. We successfully implemented an aSOA on Apache Axis, which enables to asynchronous messaging of SOAP over SMTP. We demonstrated that conventional methods are subsets of the proposed methodology, which is the major contribution of this work.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"6 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":"131422478","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 specification, design and implementation of web service applications need to address three major aspects: Orchestration of Services, Conversation and Choreography. In distributed computing, abstractions such as scripts have been used to abstract patterns of communication hiding low level details. In this paper, we demonstrate an approach of integrating orchestration with scripting to depict a pattern of communication or conversations among various agents.
{"title":"Choreography = Orchestration with Scripts + Conversations","authors":"A. Bhattacharjee, R. Shyamasundar","doi":"10.1109/ICWS.2008.129","DOIUrl":"https://doi.org/10.1109/ICWS.2008.129","url":null,"abstract":"The specification, design and implementation of web service applications need to address three major aspects: Orchestration of Services, Conversation and Choreography. In distributed computing, abstractions such as scripts have been used to abstract patterns of communication hiding low level details. In this paper, we demonstrate an approach of integrating orchestration with scripting to depict a pattern of communication or conversations among various agents.","PeriodicalId":275591,"journal":{"name":"2008 IEEE International Conference on Web Services","volume":"44 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":"128311870","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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