5,052 research outputs found
Feasibility of EPC to BPEL Model Transformations Based on Ontology and Patterns
Model-Driven Engineering holds the promise of transforming\ud
business models into code automatically. This requires the concept of\ud
model transformation. In this paper, we assess the feasibility of model\ud
transformations from Event-driven Process Chain models to Business\ud
Process Execution Language specifications. To this purpose, we use a\ud
framework based on ontological analysis and workflow patterns in order\ud
to predict the possibilities/limitations of such a model transformation.\ud
The framework is validated by evaluating the transformation of several\ud
models, including a real-life case.\ud
The framework indicates several limitations for transformation. Eleven\ud
guidelines and an approach to apply them provide methodological support\ud
to improve the feasibility of model transformation from EPC to\ud
BPEL
A Formal Architecture-Centric Model-Driven Approach for the Automatic Generation of Grid Applications
This paper discusses the concept of model-driven software engineering applied
to the Grid application domain. As an extension to this concept, the approach
described here, attempts to combine both formal architecture-centric and
model-driven paradigms. It is a commonly recognized statement that Grid systems
have seldom been designed using formal techniques although from past experience
such techniques have shown advantages. This paper advocates a formal
engineering approach to Grid system developments in an effort to contribute to
the rigorous development of Grids software architectures. This approach
addresses quality of service and cross-platform developments by applying the
model-driven paradigm to a formal architecture-centric engineering method. This
combination benefits from a formal semantic description power in addition to
model-based transformations. The result of such a novel combined concept
promotes the re-use of design models and facilitates developments in Grid
computing.Comment: 11 pages, 9 figures. Proc of the 8th International Conference on
Enterprise Information Systems (ICEIS06) Paphos, Cyprus. May 200
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Towards an aspect weaving BPEL engine
This position paper proposes the use of dynamic aspects and
the visitor design pattern to obtain a highly configurable and
extensible BPEL engine. Using these two techniques, the
core of this infrastructural software can be customised to
meet new requirements and add features such as debugging,
execution monitoring, or changing to another Web Service
selection policy. Additionally, it can easily be extended to
cope with customer-specific BPEL extensions. We propose
the use of dynamic aspects not only on the engine itself
but also on the workflow in order to tackle the problems of
Web Service hot deployment and hot fixes to long running
processes. In this way, composing aWeb Service "on-the-fly"
means weaving its choreography interface into the workflow
Data integration in mediated service compositions
A major aim of the Web service platform is the integration of existing software and information systems. Data integration is a central aspect in this con-
text. Traditional techniques for information and data transformation are, however, not sucient to provide
exible and automatable data integration solutions for Web
and Cloud service-enabled information systems. The diculties arise from a high degree of complexity in data structures in many applications and from the additional problem of heterogenity of data representation in applications that often cross organisational boundaries. We present an integration technique that embeds a declarative data transformation technique based on semantic data models as a mediator service into a Web service-oriented information system architecture. Automation through consistency-oriented semantic data models and exibility through modular declarative data transformations are the key enablers of the approach. Automation is needed to enable dynamic integration and composition. Modiability
is another aim here that benets from consistency and modularity
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