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Change management is critical and challenging in the development and maintenance of service-based applications and information systems due to the distributed and dynamic nature of services. This paper proposes an approach for facilitating the change impact analysis in a service oriented environment. This research focuses on a typical scenario that multiple services are supported by a single business...
In this paper, we propose an approach to deal with the change management for service oriented business processes. Beyond existing work, the proposed approach highlights the dependencies between services and business processes. A service oriented business process model is devised for capturing the major characteristics of change management in service oriented context. The taxonomy for the changes associated...
A composite service can be constructed with the arbitrary combination of sequential, parallel, loop, and conditional structures. In this paper, we propose a general solution to calculate the QoS for composite services with complex structures. We also show QoS-based service selection can be conducted based on the proposed QoS calculation method. An application example is given to show the effectiveness...
Service composition is a technique to recompose various heterogeneous network services for a new business. A modern streaming media system may run multiple businesses. Their resources can easily be improperly distributed and under utilized. This paper studies service composition in the context of streaming media applications. A three-layer model is adopted to describe the system. The optimal service...
Modern distributed systems require collaborations between individual organizations. The collaborations consist of complex relationships and interactions among distinct administrative domains. Different forms of collaboration can be implemented. As a result, different security control requirements emerge. For example, service propagation requires all collaborating partners to have compatible authorization...
Based on real development experience, the paper presents a collection of design techniques for building enterprise web services. By applying the techniques to web services development, not only the development increases reusability and productivity, but also the web services improve agility and compatibility.Enterprise web services require high grade of competency in designing web service contracts...
With the steady growth of Web services in recent years, service users are confronted with great difficulties in selecting suitable services from substantial functionally similar services in the complex service provisioning environment. Contradictions and incompatibilities arise during service selection in the design and maintenance of enterprize applications. To solve these problems, necessary relations...
Mashups, a new Web 2.0 technology provide the ability for easy creation of Web-Based applications by end-users. The uses of the mashups are often consumer related. In this paper we explore how mashups can be used in the enterprise area and hat the criteria for enterprise mashups are. We provide categories for the classification of enterprise mashups, and based upon a motivating example we go further...
Different types of business collaborations exist in terms of the way that the collaboration is carried out. In this paper, we will look into the characteristics of different collaborations and analyze their policy requirements accordingly. Various inconsistencies between authorization policies from different business units are identified and suggestions are made according to different types collaborations.
Managing business collaboration is about coordinating the flow of information among organizations and linking their business processes into a cohesive whole. A consistent outcome is expected within and among involving organization. However, inadequate coordination onthe autonomous, heterogeneous, and long-lasting cross-organizational business processes can lead to inconsistent execution in loosely-coupled...
The collaborative business process can be unreliable when business partners collaborate in a peer-to-peer fashion without central control. An important issue that needs to be dealt with for any generic solution to manage collaborative business transaction is reliability verification. In this paper, a business collaboration model, choreographical business transaction net (CoBTx-Net) is developed for...
In order to make business service more flexible and reusable, it is desirable to provide users or applications the same service but with different service quality, different interaction paths, or with different outcomes. We call this design principle as Service Differentiation. This paper describes a fully functional mechanism where variability is externalized as usage context and context aware policies...
Service oriented computing (SOC) allows resources on a network to be made available as services. For a business service, differentiated services can be provided based on the usage context, i.e., location, age, purpose and user profiles. In differentiated services, service outcomes depend on context. Currently there is no efficient technical solution for supporting differentiated service development...
Business transaction is about coordinating the flow of information among organizations and linking their business processes, associated with the solutions to ensure the eventual generation of the consistent outcomes. One important issue here is how to maintain consistency for each partner in the collaborative business transaction as well as consistency for the transaction as a whole during the long...
Current business process development is a process that needs to apply software development principles and at the same time incorporate the special requirements of service oriented architecture (SOA). In this paper we discuss the steps and principles involved in developing service oriented finance business process in the domain capital market
Current composite Web service development and management solutions, e.g. BPEL, do not cater for flexible and adaptive business collaborations due to their pre-defined and inflexible nature that precludes them accommodating business dynamics. In this paper we propose a rule driven approach for adaptive business collaboration development in which rules drive and govern the development process. We firstly...
More and more companies are now beginning to recognize the benefits of systematically managing their processes. It will require specially designed electronic repositories to help define, track and share knowledge about business processes. This paper presents a knowledge-based system for managing the processes of a company. The architecture of the system is introduced first. Then, the overall process...
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