eFlow: a platform for developing and managing composite e-services

Casati, Fabio; Ilnicki, S.; Jin, Li-jie; Krishnamoorthy, Vasudev; Shan, Ming-Chien

doi:10.1109/aiworc.2000.843314

Cited by 73 publications

(41 citation statements)

References 6 publications

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“…Previous efforts in this area such as CMI [11] and eFlow [6] have investigated dynamic service selection based on user requirements. In particular, CMI's service definition model features the concept of a placeholder activity to cater for dynamic composition of services.…”

Section: Related Workmentioning

confidence: 99%

Quality driven web services composition

Zeng

Benatallah

Dumas

et al. 2003

Proceedings of the Twelfth International Conference on World Wide Web - WWW '03

884

248

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The process-driven composition of Web services is emerging as a promising approach to integrate business applications within and across organizational boundaries. In this approach, individual Web services are federated into composite Web services whose business logic is expressed as a process model. The tasks of this process model are essentially invocations to functionalities offered by the underlying component services. Usually, several component services are able to execute a given task, although with different levels of pricing and quality. In this paper, we advocate that the selection of component services should be carried out during the execution of a composite service, rather than at design-time. In addition, this selection should consider multiple criteria (e.g., price, duration, reliability), and it should take into account global constraints and preferences set by the user (e.g., budget constraints). Accordingly, the paper proposes a global planning approach to optimally select component services during the execution of a composite service. Service selection is formulated as an optimization problem which can be solved using efficient linear programming methods. Experimental results show that this global planning approach outperforms approaches in which the component services are selected individually for each task in a composite service.

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Section: Related Workmentioning

confidence: 99%

Quality driven web services composition

Zeng

Benatallah

Dumas

et al. 2003

Proceedings of the Twelfth International Conference on World Wide Web - WWW '03

884

248

View full text Add to dashboard Cite

show abstract

“…Platforms for developing composite e-services proposed in eFlow [6], E-speak [11], and CMI (Collaboration Management Infrastructure) [15] are compositional models, similar to our approach. However, their design of e-services (compositional process) is still manual, while our approach uses a workflow definition model where the workflow task selection and ordering knowledge is explicitly modeled for automating the generation of the workflow definition.…”

Section: Related Workmentioning

confidence: 99%

Domain Knowledge-Based Automatic Workflow Generation

Chun

Atluri

Adam

2002

Lecture Notes in Computer Science

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Abstract. The traditional workflow design paradigm relies heavily on humans who statically specify business processes. However, such a manual design approach is not suitable for many cases: (a) Inter-agency workflows that cross autonomous organizational boundaries require experts who possess knowledge required for defining workflows composed of services from the constituent organizations; (b) Customized workflows that require many variations make it infeasible and error-prone to predefine the complex workflow in advance. This paper presents an alternative design paradigm that allows automatic on-the-fly generation of a workflow schema. This dynamically integrated workflow composition approach utilizes conceptual ontologies of domain services (tasks) and domain integration knowledge that serves as a model for workflow integration (composition) rules. It also uses user profiles (preferences) as part of (transient) compositional rule base. We present a prototype system for "registering a new business" in the State of New Jersey that implements this automatic workflow design methodology.

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“…The research presented in this paper demonstrates the use of IRules functionality within Web Services. The eFlow system (Casati et al, 2000) provides features for service processes to be adaptive and change according to business requirements and environment conditions. Similar functionality can be achieved in the IRules system by defining integration rules, which may change according to business requirements to enable adaptive integration of components.…”

Section: Related Workmentioning

confidence: 99%

“…A state chart is composed of states and transitions, where transitions are represented as active rules. The eFlow system (Casati et al, 2000) is a service process engine that supports specification, enactment, and management of composite eservices. A composite service in eFlow is described as a process schema that may include services, decisions or rules, and event nodes.…”

Section: Related Workmentioning

confidence: 99%

A Prototype for Integration of Web Services Into the Irules Approach to Component Integration

Urban

Kumar

Dietrich

2005

Proceedings of the Seventh International Conference on Enterprise Information Systems

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The Integration Rules (IRules) environment provides a framework for using events and rules in the integration of EJB components. This research has investigated the extensions required to integrate Web Services into the IRules architecture and execution environment. The IRules language framework and metadata have been extended for Web Services, with enhancements to Web Service interfaces for describing services that represent object manipulation operations as well as component enhancements such as event generation, stored attributes, and externalized relationships between distributed components. Web service wrappers provide the additional IRules functionality for the enhanced Web Service interfaces, with a state management facility in the IRules environment providing persistent storage of stored attributes and externalized relationships. The IRules Web service wrappers are client-side, component-independent wrappers for Web Services, thus providing a more dynamic approach to the modification of service interfaces as well as the dynamic entry and exit of participants in the integration process.

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eFlow: a platform for developing and managing composite e-services

Cited by 73 publications

References 6 publications

Quality driven web services composition

Quality driven web services composition

Domain Knowledge-Based Automatic Workflow Generation

A Prototype for Integration of Web Services Into the Irules Approach to Component Integration

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