Process Fragments

Eberle, Hanna; Unger, Tobias; Leymann, Frank

doi:10.1007/978-3-642-05148-7_29

Cited by 55 publications

(30 citation statements)

References 4 publications

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“…Work with similar goals, but specific to the telecommunications domain, has been presented Niemöller et al [27]. An approach which deals with process fragment composition is presented by Eberle et al [28]. Their idea is to exploit the redundancy in separately modeled composition fragments and use those redundant overlapping fragment parts to merge the fragments.…”

Section: Related Workmentioning

confidence: 97%

Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution

Leitner

Wetzstein

Karastoyanova

et al. 2010

Service-Oriented Computing – ICSOC 2007

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Abstract. In this paper we show how the application of the aspectoriented programming paradigm to runtime adaptation of service compositions can be used to prevent SLA violations. Adaptations are triggered by predicted violations, and are implemented as substitutions of fragments in the service composition. Fragments are full-fledged standalone compositions, and are linked into the original composition via special activities, which we refer to as virtual activities. Before substitution we evaluate fragments with respect to their expected impact on the performance of the composition, and choose those fragments which are best suited to prevent a predicted violation. We show how our approach can be implemented using Windows Workflow Foundation technology, and discuss our work based on an illustrative case study.

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Section: Related Workmentioning

confidence: 97%

Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution

Leitner

Wetzstein

Karastoyanova

et al. 2010

Service-Oriented Computing – ICSOC 2007

Self Cite

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“…Sub-processes and sub-workflows can be used to decompose business processes and workflows. A common approach is workflow or process 'fragmentation' [Adams et al 2006;Ma and Leymann 2009;Eberle et al 2009]. A fragment is a reusable piece of process or workflow code, created from scratch or extracted from existing processes, that can be used to compose processes or workflows.…”

Section: Process-based Approachesmentioning

confidence: 99%

“…-The reference approach not only represents the de facto standard, it also represents the current way of thinking in these domains. Most state of the art techniques build upon these technologies and paradigms [Ma and Leymann 2009;Eberle et al 2009;Tran et al 2012]. -The selected technologies and principles provide a stable basis for comparison that can be used by other researchers in their evaluation.…”

Section: Evaluation: a Controlled Experimentsmentioning

confidence: 99%

Architecture-centric support for adaptive service collaborations

Haesevoets

Weyns

Holvoet

2014

ACM Trans. Softw. Eng. Methodol.

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In today's volatile business environments, collaboration between information systems, both within and across company borders, has become essential to success. An efficient supply chain, for example, requires the collaboration of distributed and heterogeneous systems of multiple companies. Developing such collaborativ e applications and building the supporting information systems poses several engineering challenges. A key challenge is to manage the ever growing design complexity. In this article, we argue that software architecture should play a more prominent role in the development of collaborative applications. This can help to better manage design complexity by modularizing collaborations and separating concerns. State of the art solutions, however, often lack proper abstractions for modeling collaborations at architectural level or do not reify these abstractions at detailed design and implementation level. Developers, on the other hand, rely on middleware, business process management, and Web services, techniques that mainly focus on low-level infrastructure.To address the problem of managing the design complexity of collaborative applications, we present Macodo. Macodo consists of three complementary parts: (1) a set of abstractions for modeling adaptive collaborations, (2) a set of architectural v iews, the main contribution of this article, that reify these abstractions at architectural level, and (3) a proof of concept middleware infrastructure that supports the architectural abstractions at design and implementation level. We evaluate the architectural v iews in a controlled experiment. Results show that the use of Macodo can reduce fault density and design complexity, and improve reuse and productivity. The main contributions of this article are illustrated in a supply chain management case.

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“…Each service is represented as a fragment [8] that represents the interface with an internal process in a DO. The FBM for example, provides two main fragments, namely the BookFlexiBus and the TicketPaymentRequest.…”

Section: Entity Representationmentioning

confidence: 99%

Domain Objects for Dynamic and Incremental Service Composition

Bucchiarone

Sanctis

Pistore

2014

Advanced Information Systems Engineering

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Abstract. A key feature of service-based applications (SBAs) is the capacity to dynamically define the composition of services independently available, which is required to achieve user goals. For this reason, to effectively deal with the obstacles due to continuous context changes, an incremental refinement of provided services is needed. We propose a new model that allows service functionalities to be defined partially, through the use of abstract activities. The refinement of these activities is postponed and performed incrementally at runtime, using the actual context as a guide. Our approach lets a service provider avoid the hard-coding of all service functionalities and their possible compositions at design time, delaying their refinement until the execution phase. Consequently the whole SBA's design becomes modular and flexible to better meet the typical dynamism of SBA. We illustrate the approach through an example scenario from the urban mobility domain.

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Process Fragments

Cited by 55 publications

References 4 publications

Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution

Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution

Architecture-centric support for adaptive service collaborations

Domain Objects for Dynamic and Incremental Service Composition

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