13,813 research outputs found

    Improving automation standards via semantic modelling: Application to ISA88

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    Standardization is essential for automation. Extensibility, scalability, and reusability are important features for automation software that rely in the efficient modelling of the addressed systems. The work presented here is from the ongoing development of a methodology for semi-automatic ontology construction methodology from technical documents. The main aim of this work is to systematically check the consistency of technical documents and support the improvement of technical document consistency. The formalization of conceptual models and the subsequent writing of technical standards are simultaneously analyzed, and guidelines proposed for application to future technical standards. Three paradigms are discussed for the development of domain ontologies from technical documents, starting from the current state of the art, continuing with the intermediate method presented and used in this paper, and ending with the suggested paradigm for the future. The ISA88 Standard is taken as a representative case study. Linguistic techniques from the semi-automatic ontology construction methodology is applied to the ISA88 Standard and different modelling and standardization aspects that are worth sharing with the automation community is addressed. This study discusses different paradigms for developing and sharing conceptual models for the subsequent development of automation software, along with presenting the systematic consistency checking methodPeer ReviewedPostprint (author's final draft

    Issues with implementing ERP in the public administration

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    As governments work to transform their environments from an internal resource optimization to a process integration and external collaboration focus, integrated systems stand at the forefront of solutions that will achieve this goal. Enterprise Resource Planning (ERP) is proven to significantly increase efficiency, improve information access, reduce total cost of ownership, and help government achieve the highest levels of accountability and constituent service. Yet implementing ERP in a manner that achieves its promises is no easy task. Public sector organizations often rationalize their ERP modernization initiatives within the context of budgetary constraints and are faced with multiple ERP providers that, on the surface, are difficult to discern. In addition, adjudicating between competing ERP solutions on their functional merit is not only difficult because of the complexity of ERP systems, but it is further complicated by the intricacy of the government acquisition process. Therefore, it is particularly important that the business value be sold at the executive and political levels of government and, to be successful, that government embeds the ERP solution within its culture and processes. What's more, the level of detailed analysis required to map functional requirements to ERP solutions is an arduous task that, even if done thoroughly, hasn't always delivered a successful implementation. In this article, we will address these issues by examining the evolution and shortcomings of ERP solutions; by defining the features and functionality needed to address government transformation; and by recommending the steps to take to position for success.government, public organizations, ERP, integrated systems

    Fundamental Modes of Operation for Mass Customization

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    The concept of Mass Customization (MC) - producing customised goods for a mass market - has received considerable attention in the research literature in recent years. However the literature is limited in providing an understanding of the content of MC strategies (the organizational structures, process technologies, etc., that are best in a particular environment) and the process of MC strategies (the sub-strategy that an enterprise should select and how they should go about implementing an MC strategy). In this paper six published classification schemes of relevance to Mass Customization are reviewed. The classification schemes are applied to five case studies of enterprises operating in an MC environment. The limitations of the schemes are analysed and their failure to distinguish key characteristics is highlighted. Analysis of the findings leads to the development of a taxonomy of operational modes for MC. Five fundamental modes of operation for Mass Customization are identified. These modes are described and justified and their application is illustrated by contrasting the information requirements of two modes. The potential of these modes to provide the foundations for detailed configurations models is discussed

    A survey on cyber security for smart grid communications

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    A smart grid is a new form of electricity network with high fidelity power-flow control, self-healing, and energy reliability and energy security using digital communications and control technology. To upgrade an existing power grid into a smart grid, it requires significant dependence on intelligent and secure communication infrastructures. It requires security frameworks for distributed communications, pervasive computing and sensing technologies in smart grid. However, as many of the communication technologies currently recommended to use by a smart grid is vulnerable in cyber security, it could lead to unreliable system operations, causing unnecessary expenditure, even consequential disaster to both utilities and consumers. In this paper, we summarize the cyber security requirements and the possible vulnerabilities in smart grid communications and survey the current solutions on cyber security for smart grid communications. © 2012 IEEE

    A manufacturing system engineering ontology model on the semantic web for inter-enterprise collaboration

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    This paper investigates ontology-based approaches for representing information semantics and in particular the World Wide Web. A general manufacturing system engineering (MSE) knowledge representation scheme, called an MSE ontology model, to facilitate communication and information exchange in inter-enterprise, multi-disciplinary engineering design teams has been developed and encoded in the standard semantic web language. The proposed approach focuses on how to support information autonomy that allows the individual team members to keep their own preferred languages or information models rather than requiring them all to adopt standardized terminology. The MSE ontology model provides efficient access by common mediated meta-models across all engineering design teams through semantic matching. This paper also shows how the primitives of Web Ontology Language (OWL) can be used for expressing simple mappings between the mediated MSE ontology model and individual ontologies

    Spatial organization of production in India: contesting themes and conflicting evidence

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    The emergence of space as a determinant in the functional relations linked to production and growth is a recent development in theories of industrial organization. This paper primarily reviews the contesting themes in explaining changes in relative importance of space. In reference to industrial clusters in India, the paper argues that it is the heterogeneity of the industrial organizations that captures ‘space’ as an analytical category and broad generalizations often do not address the spatial dimensions. Neither also is it true, at least for developing countries such as India, that small enterprise clusters always reflect the post-Fordist dimension of change in the production organization. In the context of global production chain, this paper further argues that participation in such value chains might lead to contradictory outcomes in production organization giving rise to increased rift between the ‘global’ and the ‘local’.endogenous growth, region, technology, fragmentation, footloose industry
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