601 research outputs found

    Toward the automation of business process ontology generation

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    Semantic Business Process Management (SBPM) utilises semantic technologies (e.g., ontology) to model and query process representations. There are times in which such models must be reconstructed from existing textual documentation. In this scenario the automated generation of ontological models would be preferable, however current methods and technology are still not capable of automatically generating accurate semantic process models from textual descriptions. This research attempts to automate the process as much as possible by proposing a method that drives the transformation through the joint use of a foundational ontology and lexico-semantic analysis. The method is presented, demonstrated and evaluated. The original dataset represents 150 business activities related to the procurement processes of a case study company. As the evaluation shows, the proposed method can accurately map the linguistic patterns of the process descriptions to semantic patterns of the foundational ontology to a high level of accuracy, however further research is required in order to reduce the level of human intervention, expand the method so as to recognise further patterns of the foundational ontology and develop a tool to assist the business process modeller in the semi-automated generation of process models

    Numerical simulation of Faraday waves

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    We simulate numerically the full dynamics of Faraday waves in three dimensions for two incompressible and immiscible viscous fluids. The Navier-Stokes equations are solved using a finite-difference projection method coupled with a front-tracking method for the interface between the two fluids. The domain of calculation is periodic in the horizontal directions and bounded in the vertical direction by two rigid horizontal plates. The critical accelerations and wavenumbers, as well as the temporal behaviour at onset are compared with the results of the linear Floquet analysis of Kumar and Tuckerman [J. Fluid Mech. 279, 49-68 (1994)]. The finite amplitude results are compared with the experiments of Kityk et al. [Phys. Rev. E 72, 036209 (2005)]. In particular we reproduce the detailed spatiotemporal spectrum of both square and hexagonal patterns within experimental uncertainty

    Experiences of generating COTS components when automating medicinal product evaluations

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    This paper reports on experiences of generating COTS components when designing and deploying component based software architecture for automation and interoperation of medicinal product evaluations across different countries in the world. Our generic architectural model renders two sets of software components that are candidates for COTS components. We identify which role such COTS components may play and outline our approach of generating them. We advocate that such COTS components are developed with a specific component platform in mind and must adhere to constraints of our software architecture

    Outsourcing network management

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    The paper analyses the current situation in outsourcing of IT and network management through the literature review and examples in industry. We have focused on trends, benefits and risks in outsourcing network management and made proposals to address the problems through a carefully managed network outsourcing relationship. The available statistics and the the survey of six UK companies has revealed that the upfront negotiation of service level agreements should be one of the most important aspects of conducting the outsourcing of network management

    Design patterns for automation of marketing authorisations in pharmaceutical industry

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    This paper reports on the experiences of using existing and creating new design patterns when deploying layered and component based software architecture that automates procedures for marketing authorization. We use the strategy pattern within the generic architecture and deploy the architectural components with the Model-View-Controller (MVC) and front controller patterns. Three domain specific patterns have been created and named as: look-up, submission and evaluation. We advocate that our combination of general and domain specific patterns (i) facilitate the design of distributed software applications, (ii) can be reused in any problem domain where workflows similar to submission and evaluations of application licenses occur, and (iii) comprise commercial-off-the-shelf (COTS) components that fit within our software architecture

    Numerical simulation of super-square patterns in Faraday waves

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    We report the first simulations of the Faraday instability using the full three-dimensional Navier-Stokes equations in domains much larger than the characteristic wavelength of the pattern. We use a massively parallel code based on a hybrid Front-Tracking/Level-set algorithm for Lagrangian tracking of arbitrarily deformable phase interfaces. Simulations performed in rectangular and cylindrical domains yield complex patterns. In particular, a superlattice-like pattern similar to those of [Douady & Fauve, Europhys. Lett. 6, 221-226 (1988); Douady, J. Fluid Mech. 221, 383-409 (1990)] is observed. The pattern consists of the superposition of two square superlattices. We conjecture that such patterns are widespread if the square container is large compared to the critical wavelength. In the cylinder, pentagonal cells near the outer wall allow a square-wave pattern to be accommodated in the center
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