SCC 2004

Message from the General Chairs

12/22/2006 09:51

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10007

Message from the Program Chairs

12/22/2006 09:51

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10003

Conference Officers

12/22/2006 09:51

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10011

Program and Industry Committees

12/22/2006 09:51

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10004

Special Session Chairs

12/22/2006 09:52

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10010

Author Index

12/22/2006 09:54

Full Article Text: DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/SCC.2004.10002

A New Formal Model Based on P-System for Mobile Transactions

Zhengwei Qi,Ruonan Rao,Guangtao Xue,Jinyuan You — 1/11/2007 04:14

Mobile Web Services enable the IT industry and the mobile industry to create products and services that meet customer needs within the existing Web services framework. Transaction support is crucial in mobile web services. The existing mobile transaction models are application-specific and not suitable to investigate the generic theoretical model. This paper presents a new formal method called PMTM (P system-based Mobile Transaction Model) to formalize the behavior of mobile transactions. There are two kinds of transition rules in PMTM. The first group is Object Rules, which describe the transitions in membranes. The second group is Membrane Rules, which define the structural modification of membranes. Finally, we use Mobile Dining Philosophers Problem to illustrate the usage of PMTM.buy now

A Dynamic Two-Phase Commit Protocol for Self-Adapting Services

Weihai Yu,Yan Wang,Calton Pu — 1/11/2007 04:29

Next-generation applications based on Web services impose additional requirements on the use of coordination protocols with various optimizations, such as the two-phase commit protocol (2PC). This paper analyses the well-known 2PC optimizations presumed commit and presumed abort, and presents an improved 2PC that is suitable for Web services based applications. More specifically, the protocol allows every individual service provider to choose dynamically the most appropriate presumption for any distributed transaction. The protocol does not introduce extra overhead to the previous 2PC variants in terms of number of messages and log records, and it is easy to understand and realize.buy now

Constraint Driven Web Service Composition in METEOR-S

Rohit Aggarwal,Kunal Verma,John Miller,William Milnor — 1/11/2007 05:06

Creating Web processes using Web service technology gives us the opportunity for selecting new services which best suit our need at the moment. Doing this automatically would require us to quantify our criteria for selection. In addition, there are challenging issues of correctness and optimality. We present a Constraint Driven Web Service Composition tool in METEOR-S, which allows the process designers to bind Web Services to an abstract process, based on business and process constraints and generate an executable process. Our approach is to reduce much of the service composition problem to a constraint satisfaction problem. It uses a multi-phase approach for constraint analysis. This work was done as part of the METEOR-S framework, which aims to support the complete lifecycle of semantic Web processes. buy now

A Fine-Grained Access Control Model for Web Services

E. Bertino,A. C. Squicciarini,D. Mevi — 1/11/2007 19:51

The emerging Web service technology has enabled the development of Internet-based applications that integrate distributed and heterogeneous systems and processes which are owned by different organizations. However, while Web services are rapidly becoming a fundamental paradigm for the development of complex Web applications, several security issues still need to be addressed. Among the various open issues concerning security, an important issue is represented by the development of suitable access control models, able to restrict access to Web services to authorized users. In this paper we present an innovative access control model for Web services. The model is characterized by a number of key features, including identity attributes and service negotiation capabilities. We also discuss an architecture implementing the model and we propose the use of a certificate scheme able to support the exchange and verification of subject attributes.buy now

Managing Trust in Active XML

Etienne Canaud,Salima Benbernou,Mohand-Said Hacid — 12/15/2006 11:49

Active XML [The Active XML Team, http://www-rocq.inria.fr/gemo/gemo/projects/axml/] combines XML Data and service calls to allow a simple and powerful Web services implementation. Security in Active XML is currently handled by matching the structure of the received data with an XML Schema representing the allowed data (including service calls). This solution is not fully satisfactory in case of an open environment where the services do not often know or trust each other. Moreover, the strength of Active XML lies in its simple and dynamic structure, and the modified XML Schemas used for security matching can quickly limit the allowed services, or give too much freedom to services that should not be trusted. Given that the result of an Active XML service call is some Active XML data (that may include more service calls), Active XML data is recursive, thus involving more security concerns. We propose a new framework based on the notion of Trust (Trusted Active XML) for handling security in Active XML. In this framework, "trusted" services answers are not restricted to a specific data schema, while "untrusted" ones are prevented from performing some unwanted operations.buy now

A Role based Access Control for Web Services

Roosdiana Wonohoesodo,Zahir Tari — 1/11/2007 20:41

Web services are vulnerable to various types of security attacks. This paper addresses one type of attacks, where applications trying to access services to which they are not authorized. Existing access control for web services lack of support for global services. As such services are WAN-based, therefore access control needed to deal with various levels of web services, including global (for composite services) and local level (for web servers). This paper proposes two access control: SWS-RBAC (for single services) and CWS-RBAC (for global services). Instead of protecting the content of the service's parameters, these models protect the parameters themselves. The proposed approach introduces global roles which are used in the mapping to local roles of other service providers. To maintain the autonomy of roles between providers, an efficient role-mapping mechanism has been proposed accordingly.buy now

A SRP Based Handler for Web Service Access Control

Flavio O. Silva,Joao A. A. Pacheco,Pedro F. Rosa — 1/11/2007 20:47

Security is a critical issue. The wide use of Internet applications has tremendous benefits, but a security fail can expose confidential data. Web Services is a software application that can be remotely accessed over Internet using interoperable standards based on XML. At this time, there are no broadly adopted specifications for Web Services security and in this paper we present an extension to the SRP (Secure Remote Password) protocol in order to apply access control to a Web Service as an independent layer. This additional independent layer can be built on any available Web Service platform. In this work we have used Apache AXIS for this end.buy now

Assessing the Risk and Value of Adopting Emerging and Unstable Web Services Specifications

Savas Parastatidis,Jim Webber — 1/11/2007 20:52

With the proliferation of Web Services specifications, the question of which of the multiplicity of technologies to adopt arises. While sometimes the decision can be based purely on matching requirements to protocol capabilities, a harder consideration is whether the chosen specifications will enable wide interoperability with other systems, or lead to an architectural dead-end. This paper presents a risk assessment of several contemporary WS-protocols, enabling architects and developers to make sane choices for service interoperability.buy now

Performance Problems of Large Operational Systems Based on Web Services and a Solution

Hans Albrecht Schmid — 1/11/2007 21:04

Large monolithic business systems, as for example the business suite Mysap from SAP, are increasingly restructured in system architectures with fine-granular components, which are loosely coupled by Web services. Their intra-system collaboration has usually no need for dynamic discovery with UDDI. Those architectures show many advantages, but cause also a performance problem which might become an inhibitor to their use in operational systems. We experienced that problem with I^3 M, an instant messaging system we developed and present as an example. Measurements with I^3 M show that the performance overhead of Web service invocation among collocated system components may decrease the system performance dramatically. We propose a solution to the performance problem that preserves the benefits of Web service invocations, but provides the performance of "normal" component invocations.buy now

A Framework for Provisioning of Complex e-Services

S. Modafferi,E. Mussi,A. Maurino,B. Pernici — 12/15/2006 13:35

Nowadays e-services are gaining strong momentum. The Web is a strongly connected environment and it is moving from being a simple collection of HTML pages toward a container of e-services. In an extremely competitive world, providers of e-service aim at satisfying user needs, providing enriched e-services characterized by high adaptivity to the context and multichannel provisioning. Providers also want to give users the opportunity of executing complex e-services or processes transparently with respect to orchestration issues. The MAIS Project [Mais: Multichannel Adaptive Information Systems. www.mais-project.com] is an attempt to realize a framework able to ensure all these characteristics at the same time. In this paper, we present our vision of a multichannel adaptive composition framework by focusing on e-service composition and provisioning.buy now

Architecture of Sensor based Agricultural Information System for Effective Planning of Farm Activities

Sanjay Chaudhary,Vikram Sorathia,Zakir Laliwala — 12/15/2006 13:37

The effectiveness of decision-making in agriculture domain can be improved by integrating current local environmental conditions with Agricultural Information System (AIS). To achieve this objective a series of functional blocks is proposed; which involves collection of environmental parameters from the farm, merging data from multiple sensors, communicating the collected data to the application server, extracting required information, defining ETL process, integration with ancillary data, analysis and presentation services. Web service based architecture comprising of distributed components is proposed to support the computational need. The proposed architecture extends analytical capabilities of end users with the help of multi dimensional expressions and OLAP.buy now

A Web Services Environment for Internet-Scale Sensor Computing

Rui Peng,Kien A. Hua,Georgiana L. Hamza-Lup — 12/15/2006 13:39

In this paper, we present a Web-Services framework for publishing, browsing, and analyzing real-time sensor data. Existing work, based on database technologies, assumes a known set of sensors, deployed for a specific application, intended for a group of users who are aware of the application. In contrast, our work provides a new environment for publishing real-time sensor data, and sharing sensor-based applications with unsolicited users over the Internet. Providers register their sensors with a UDDI registry where any user can discover them over the Internet. Once the desired sensors are located, the user can employ two new communication protocols, namely SSCP and SSTP, to control the incoming sensor streams. As the data arrive at the user browser software, a corresponding plug-in such as a data animation module is activated to allow the user to "see" the data stream presented in an intelligible way.buy now

Location-Mediated Web Services Coordination in Ubiquitous Computing

Akio Sashima,Noriaki Izumi,Koichi Kurumatani — 1/12/2007 00:29

To realize human-centered coordinating services in ubiquitous computing, we require a framework that coordinates physically distributed heterogeneous services according to users' intentions and locations. How can we coordinate the services to assist the user in receiving a coordinated service to maximize the user's satisfaction in an environment In order to solve this issue, we have been developing a sort of agent-based coordination framework, called "location-mediated web service coordination," that orchestrates Web Services wrapped in the agents. In this paper, we show a prototype application of the framework, context-aware information assist services in a museum. buy now

Towards Composing Information Providing Services

Chenxi Lin,Yong Yu,Yin Yang,Lei Zhang,Jian Zhou — 12/15/2006 13:41

Composing web services is an active field of research and development. Recently, many efforts are devoted to process integration on world changing services, e.g. business process composition. In this paper, we present a solution to compose information providing services to achieve more powerful capabilities and free the user from trivial work. Our work serves as an important complement to the existing research on process integration.buy now

IT Service Infrastructure for Integrative Systems Biology

12/15/2006 13:43

Despite the large number of software tools and hardware platforms aiming to solve the problems that bioinformatics is facing today, there is no platform solution that can scale up to its demands, in terms of both scope and sheer volume. DiscoveryNet scientific workflow system is here extended into a service-centric component architecture that brings together cross-domain applications through web and grid services and composes them as novel service offerings. Two case studies implemented on top of the platform, SARS analysis and microarray/metabonomics, are described.buy now

Case Study: Using Web Services for the Management of Environmental Data

1/12/2007 01:37

CCLRC is involved in the development of grid and data management tools for a number of e-Science projects in the UK including the Natural Environment Research Council (NERC) funded "Environment from the Molecular Level" [http://www.eminerals.org]. CCLRC's web services based multidisciplinary Data Portal [http://www.e-science.clrc.ac.uk/web/projects/dataportal], uses an XML metadata model of scientific data [http://www-dienst.rl.ac.uk/library/2002/tr/dltr-2002001.pdf] to explore and access the content of data resources within CCLRC's main laboratories in the UK and other facilities in Europe. Last year CCLRC adapted the Data Portal for the project so that earth scientists could store and access their own metadata and datasets, and simultaneously access related metadata and datasets from other facilities around the world. To achieve this the Data Portal was redeveloped using Web Service technology so that the internal services could be accessed via any user interface or system specific to the e-science project community. Previously, access was provided only via a standard web browser.buy now

The Cost of Recovery Protocols in Web-based Database Systems

Adil M. Hammadi,John Casey,Wanlei Zhou — 12/15/2006 13:54

The cost of recovery protocols is important with respect to system performance during normal operation and failure in terms of overhead, and time taken to recover failed transactions. The cost of recovery protocols for web database systems has not been addressed much. In this paper, we present a quantitative study of cost of recovery protocols. For this purpose, we use an experiment setup to evaluate the performance of two recovery algorithms, namely the, two-phase commit algorithm and log-based algorithm. Our work is a step towards building reliable protocols for web database systems.

SCC 2004

Message from the General Chairs

Message from the Program Chairs

Conference Officers

Program and Industry Committees

Special Session Chairs

Author Index

A New Formal Model Based on P-System for Mobile Transactions

A Dynamic Two-Phase Commit Protocol for Self-Adapting Services

Constraint Driven Web Service Composition in METEOR-S

A Fine-Grained Access Control Model for Web Services

Managing Trust in Active XML

A Role based Access Control for Web Services

A SRP Based Handler for Web Service Access Control

Assessing the Risk and Value of Adopting Emerging and Unstable Web Services Specifications

Performance Problems of Large Operational Systems Based on Web Services and a Solution

A Framework for Provisioning of Complex e-Services

Architecture of Sensor based Agricultural Information System for Effective Planning of Farm Activities

A Web Services Environment for Internet-Scale Sensor Computing

Location-Mediated Web Services Coordination in Ubiquitous Computing

Towards Composing Information Providing Services

IT Service Infrastructure for Integrative Systems Biology

Case Study: Using Web Services for the Management of Environmental Data

The Cost of Recovery Protocols in Web-based Database Systems

Integrating Text Mining into Distributed Bioinformatics Workflows: A Web Services Implementation

A Service Interoperability Assessment Model for Service Composition

A Concept Model of Web Components

A Generic Framework for Rapid Application Development of Mobile Web Services with Dynamic Workflow Management

WS-EPM: Web Services for Enterprise Project Management

WS-Trustworthy: A Framework for Web Services Centered Trustworthy Computing

Contextual Collaboration: Platform and Applications

Queueing Network-based Optimisation Techniques for Workload Allocation in Clusters of Computers

A Contextualized Fault-tolerant Infrastructure for P2P Mobile Service Composition

Replicating Web Applications On-Demand

Building a Service-Oriented eBanking Platform

An Ontology Based Content Model for Web Services Description

RuleBAM: A Rule-Based Framework for Business Activity Management

Introducing EAI and Service Components into Process Management

Tools and Support for Deploying Applications on the Grid

HOC-SA: A Grid Service Architecture for Higher-Order Components

SH-MDS: A ShanghaiGrid Information Service Model

Enhancing Grid Security with Trust Management

A User-Level Framework for Scheduling within Service Execution Environments

A Comparison of Alternative Web Service Allocation and Scheduling Policies

Semantic View for Grid Services

Decentralized Resilient Grid Resource Management Overlay Networks

An Open Standard Description Language for Semantic Grid Services Assembly for Autonomic Computing Overlay

A Workflow Services Middleware Model on ShanghaiGrid

Towards Service Collaboration Model in Grid-based Zero Latency Data Stream Warehouse (GZLDSWH)

Providing Data Transfer with QoS as Agreement-Based Service

Decentralized Resilient Grid Resource Management Overlay Networks

Interaction and Coordination for Distributed Grid Computing

Developing Services for Design Optimisation on the Grid

Switching Cost, Market Effects and the Pricing Model of e-Commerce

A Process Component Model for Enterprise Business Knowledge Reuse

SQL Markup Language for Enterprise Integration

A Comparison of Several Ensemble Methods for Text Categorization

An Information Retrieval Model based on Probabilistic network

Analyzing an Agent-Based Selective Information Retrieval

Context Information Extraction of the Query Based on Single Document

"Google by Reformulation": Modeling Search as Successive Refinement

Ontology-based Information Retrieval of Web Services in Virtual Enterprise

Rough Formal Concepts and Their Accuracies

Segmenting the Web Document with Document Object Model

Matchmaking for Semantic Web Services

WormTest - A Status Monitoring Framework in Grid

Intelligent Data Transferring Based on Semantic Web Services

Grid Resource Specification Language based on XML and its usage in Resource Registry Meta-Service

The Application of the BSP Model on DataGrid

Using Web Services Implementing Collaborative Design for CAD Systems

Web Semantics, Grid and Coalgebra

An Infrastructure for E-Government Based on Semantic Web Services

A New Method for Measuring the Bottleneck Bandwidth

Identity Based Proxy-Signcryption Scheme from Pairings

Optimistic Fair-exchange Protocols Based on DSA Signatures

Research and Implementation of Remote Desktop Protocol Service Over SSL VPN

Study on the Behavior-based Trust Model in Grid Security System

Security Issues in Grid Environment

Balancing Access To Highly Accessed Keys In Peer-to-Peer Systems

A Cooperative Computing Platform for Drug Discovery and Design