Schuster, H., Georgakopoulos, D., Cichocki, A., and Baker, D. (2000). Modeling and composing service-based and reference process-based multi-enterprise processes. In Proceedings of the Inernational Conference on Advanced Information Systems Engineering (CAiSE), Stockholem, Sweden.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....layer up functionality related to composition and transactions on top of the three basic standards. The SELF SERV system leverages these standards (especially SOAP, WSDL, and UDDI) and builds upon lessons learned in previous related work (e.g. eFlow [3] CMI [6]) in order to provide a scalable service middleware through which Web services can be declaratively composed, and the resulting composite services can be enacted according to different communication topologies within a dynamic environment. The rest of the paper provides an overview of the ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden, June 2000. Springer Verlag.

....the predefined statuses by defining sub statuses (e.g. defining sub statuses of the status running ) These sub statuses can appear in the traces of a service execution within subsnapshots of the snapshots involving predefined statuses. This approach is similar to the one discussed in [20]. For example, if we assume that the composite service S defines 3 sub statuses of the status running , namely searching , displaying and booking , then the XML elements representing snapshots involving the running status, can have children elements representing sub snapshots involving ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden, June 2000. Springer Verlag.

....correctness of interorganizational work flows at a conceptual level. The P2P approach is independent of the workflow management systems used and can be applied in different technical infrastructures. Clearly, 33 many researchers have focused on different aspects of interorganizational workflows [24, 26, 33, 38, 39, 45, 48]. Much work has been done on workflow transactions in the context of cross organizational workflows, e.g. 24, 26, 45] However, this work typically considers correctness issues at the task level rather than the process level. For example, the coordination model and the service model presented ....

....agents. The control flow within each agent is managed by a Petri net based workflow engine. Unfortunately, this work does not address the design problems mentioned in the introduction of this paper. Based on these observations, we conclude that the P2P is complementary to the work reported in [24, 26, 33, 38, 39, 45, 48]. In this paper, we did not address implementation issues. Most of today s commercial workflow systems use a centralized enactment service. Therefore, many of the research prototypes such as MENTOR (University of Saarland at Saarbrucken) METEOR (University of Georgia) MOBILE (University of ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and Composing Service-based and Reference Process-based Multi-enterprise Processes. In B. Wangler and L. Bergman, editors, Advanced Information Systems Engineering, 12th International Conference CAiSE 2000, number 1789 in Lecture Notes in Computer Science, pages 247--263. Springer Verlag, Berlin, 2000.

.... through peer to peer interactions, and AZTEC [49] a platform for 34 composing and enacting complex services starting from session oriented ones (i.e. of long duration, such as teleconferencing and multimedia services) As regards pure methodological approaches, SOP (Service Oriented Process, [50]) is a model for describing supply chains and inter organization processes as the composition of services, in which an interesting notion of inheritance between services is defined; the P2P approach (Public to Private, 51] consists of specifying a common public workflow, partitioning it ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker, "Modeling and Composing Service-based and Reference Process-based Multi-enterprise Processes," in Proceedings of the 12th International Conference on Advanced Information Systems Engineering (CAiSE 2000.

.... ( green pages ) Other proposals for architectures for e Services based on workflow systems have been presented in the literature [42, 43, 8, 24] The starting point of all these approaches is the concept of cooperative pro cess (also referred to as macro process [23] or multi enterprise process [35]) defined as a complex workflow involving different organizations; Il ( 2002 Kluwer Academic Publishers. Printed in the Netherlands. conversely other approaches have proposed the concept of public views on processes [20] defined as structurally correct subsets of workflow definitions. Unlike ....

Schuster, H., D. Georgakopoulos, A. Cichocki, and D. Baker: Stockholm, Sweden, 2000, 'Modeling and Composing Service-based and Reference Processbased Multi-enterprise Processes'. In: Proceedings of the 12th International Conference on Advanced Information Systems Engineering (CAISE 2000).

....be defined as the process of creating customized services from existing services by a process of dynamic discovery, integration and execution of those services in a planned order to satisfy a request from a client. Research in the area of service discovery[2, 23, 4, 9, 27] and service composition[8, 26, 17, 24, 6, 21] has focused on trying to leverage the wide array of e services available over the network to provide customized services to e customers, for example planning a business trip for a person. A business trip manager could integrate existing services like a car rental service, an airline ticket ....

....environments also need to have a robust and flexible way of discovering services following a peer to peer model. Most of the reseaxch in realizing service composition systems for web based services have a centralized architecture for service integration and execution management. eFlow [8] and CMI [26] axe service composition engines based on the centralized model of service management. A central composition engine composes and monitors composite service executions. Service Discovery models used in these engines axe also lookup server based. These engines axe targeted toward fixed ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and ref- erence process-based multi-enterprise processes. In Proc. Intl. Conference on Advanced Information Systems Engineering, Sweden., June 2000.

....be defined as the process of creating customized services from existing services by a process of dynamic discovery, integration and execution of those services in a planned order to satisfy a request from a client. Research in the area of service discovery [1, 19, 3, 8, 22]and service composition [6, 21, 14, 20, 4, 17]has focused on trying to leverage the wide array of e services available over the network to provide customized services to e customers, for example planning a business trip for a person. A business trip manager could integrate existing services like a car rental service, an airline ticket booking ....

....Composition Service Execution Layer Layer Application Layer Service Discovery Layer (Bluetooth SDP, Salutation lite etc) Fault Recovery Module Broker Arbitration and Delegation Module Figure 1. General Architecture for ad hoc service composition We are aware of systems like eFlow [6] CMI [21], Ninja Service Composition Architecture [14] Sheng s framework [4]on declarative web service composition based on state charts that broadly address various problems related to service composition in the context of wired services. Due to lack of space, we are unable to present details of these ....

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. Intl. Conference on Advanced Information Systems Engineering, Sweden., June 2000.

....process conversations (e.g. sequencing) security mechanisms (e.g. encryption, non repudiation) etc. Known implementations In the following, we brie y illustrate the composition of services in the context of the following e service platforms: The Col laboration Management Infrastructure (CMI) SGCB00] the eFLOW project [CIJ 00] the Web Base of Internet Accessible e Services (WebBIS) BMB 00] and SELF SERV [FDBP01, BDSN02] CMI is a platform for modeling and managing inter enterprise business processes. A service is modeled by state machine that speci es that possible states of a ....

.... Web Vision including markup for Web services discovery and composition [Web] Known implementations In the following, we brie y illustrate the dynamic discovery and composition of services in the context of the following e service platforms: The Col laboration Management Infrastructure (CMI) SGCB00] the EFlow project [CIJ 00] and the Web Base of Internet Accessible Services (WebBIS) BMB 00] CMI s service de nition model features the concept of a placeholder activity to cater for dynamic composition of services. A placeholder activity is an abstract activity replaced at ....

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference processbased multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden, June 2000. Springer Verlag.

....di#erent and often incompatible approaches to describing, managing and providing services have been developed, and there is still a lack of consensus and sometimes clear understanding about what constitutes a service. Some recent approaches to business to business e commerce [Casati et al. 2000; Schuster et al. 2000; Jennings et al. 2000] essentially view a service as a simple or a complex task or activity, executed within an organisation on behalf of a customer or another organisation. In other words, services are seen as abstractions of business processes. This abstraction is generally performed for the ....

....the Internet (e.g. search engines) Service composition. In the last decade, this issue has become crucial as business processes are being modeled through workflows, that can be connected through emerging enterprise wide and inter organisational workflow management systems [Casati et al. 2000; Schuster et al. 2000; Jennings et al. 2000] As a result, services that are primarily intended to be composed with others (i.e. intermediary services) need to be distinguished from those which are directly consumable (i.e. final services) On the extreme of the automation dimension, transaction, event, and ....

[Article contains additional citation context not shown here]

Schuster, H., Georgakopoulos, D., Cichocki, A., and Baker, D. (2000). Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden. Springer Verlag.

....test bed in which we will try our approach. Finally, Section 7 concludes the paper by remarking which other elements of the framework need to be realized. 2. COOPERATIVE PROCESSES A cooperative process, also referred to as macro process (Mecella and Batini 2001) or multi enterprise process (MEP, Schuster et al. 2000), is a complex business process involving different organizations. Unlike traditional workflow processes where all the activities concern the same enterprise, in a cooperative process the activities involve different organizations, either because they form together a VE or since they exchange ....

Schuster, H., Georgakopoulos, D., Cichocki, A., Baker, D.: Modeling and Composing Service-based and Reference Process-based Multi-enterprise Processes. Proceedings of the 12th International Conference on Advanced Information Systems Engineering (CAISE 2000), Stockholm, Sweden, 2000.

....providers participating in a composite service execution, is distributed across several software components hosted by the providers themselves. As these components interact in a peer to peer way, the execution of a composite service is not dependent on a central scheduler as in eFlow [3] and CMI [16], thereby avoiding a potential bottleneck. In addition, each provider is free to implement its service using any business process manager, unlike other peer to peer execution approaches such as CPM [4] which impose all the providers to deploy the same workflow management engine. Following a ....

....model is based on a centralised process engine, which is responsible for scheduling, dispatching, and controlling the execution of the composite services. Clearly, this centralised engine represents a potential bottleneck. The same remark applies to the Collaboration Management Interface (CMI) [16]. Both eFlow and CMI support dynamic provider selection, although the concept of community, which is the basis of Self Serv s provider selection approach, is not explicitely supported. The use of communities is discussed in WebBIS [2] where they are called push communities. Another difference ....

[Article contains additional citation context not shown here]

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden, June 2000. Springer Verlag.

.... whereby the responsibility of coordinating the execution a composite service, is distributed across several state coordinators (or coordinators in short) In other words, the execution of a composite service is not dependent on a central scheduler as in previous proposals (e.g. EFlow [5] and CMI [19]) but rather on software components hosted by each of the providers participating in a service composition. This software components interact in a peer to peer fashion in order to ensure that each instance of a composite service is executed in accordance with its control flow and its data flow ....

....process engine, which is responsible for scheduling, dispatching, and controlling the execution of the composite services. Clearly, this centralised process engine represents a potential bottleneck. The same remark applies to a similar platform called the Collaboration Management Interface (CMI) [19]. Both E Flow and CMI support dynamic provider selection, although the concept of community which is the basis of Self Serv s provider selection approach, is not explicitly supported. This concept of community is described in the WebBIS proposal [3] where it is called push community. Another ....

[Article contains additional citation context not shown here]

H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems Engineering (CAiSE), Stockholm, Sweden, June 2000. Springer Verlag.

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Schuster, H., Georgakopoulos, D., Cichocki, A., and Baker, D. (2000). Modeling and composing service-based and reference process-based multi-enterprise processes. In Proceedings of the Inernational Conference on Advanced Information Systems Engineering (CAiSE), Stockholem, Sweden.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker, "Modeling and composing service-based and reference process-based multi-enterprise processes," in Proc. of the 12th International Conference on Advanced Information Systems Engineering (CAiSE'00), Stockholm, June 2000.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multi-enterprise processes. In Proc. of the Int. Conference on Advanced Information Systems

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker, Modeling and Composing Service-based and Reference Process-based Multi-enterprise Processes, Proceedings of the 12th International Conference on Advanced Information Systems Engineering (CAiSE 2000), Stockholm, Sweden, 2000.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and Composing Service-Based and Reference Process-Based Multi-enterprise Processes. In Proceedings of the International Conference on Advanced Information Systems Engineering, pages 247--263, Stockholm, Sweden, June 2000.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker, "Modeling and composing service-based and reference process-based multi-enterprise processes," in B. Wangler and L. Bergman (Eds.), Proceedings of the 12th International Conference on Advanced Information Systems Engineering (CAiSE'00), Lecture Notes in Computer Science, Stockholm, Sweden, 2000, Springer-Verlag: Berlin, pp. 247--263.

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Schuster, H., Georgakopoulos, D., Cichocki, A., Baker, D.: Modeling and composing service-based and reference process-based multi-enterprise processes. In: Proc. of the 12th Int. Conference on Advanced Information Systems Engineering (CAiSE'00), Stockholm, Sweden, Springer Verlag (2000)

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and composing service-based and reference process-based multienterprise processes. In Proc. Intl. Conference on Advanced Information Systems Engineering, Sweden., June 2000.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker. Modeling and Composing Service-based and Reference Process-based Multi-enterprise Processes. In Proc. of CAiSE 2000.

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H. Schuster, D. Georgakopoulos, A. Cichocki, and D. Baker, "Modeling and composing service-based and reference process-based multi-enterprise processes," in Proc. of CaiSE 2000, Lecture Notes in Computer Science, vol. 1789, Springer-Verlag, Berlin, 2000, pp. 247--263.

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