The Experts below are selected from a list of 421944 Experts worldwide ranked by ideXlab platform
Alai Wegma - One of the best experts on this subject based on the ideXlab platform.
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a Conceptual Model for remote data acquisition systems
Computers in Industry, 2002Co-Authors: Txomi Nieva, Alai WegmaAbstract:Data acquisition systems (DASs) are the basis for building monitoring tools that enable the supervision of local and remote systems. DASs are complex systems. It is difficult for developers to compare proprietary generic DAS products and/or standards, and the design of a specific DAS is costly. In this paper, we propose a Conceptual Model of a generic DAS. This Model gives DAS developers an abstraction of DASs; it enables them to compare existing products and standards; and it provides the DAS developers that aim to develop a specific DAS with a starting point for the design of a specific DAS. We have found that a Conceptual Model of a generic system has many advantages. We propose patterns and techniques that are useful for the development of Conceptual Models of generic systems.
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a Conceptual Model for remote data acquisition systems
Lecture Notes in Computer Science, 2000Co-Authors: Txomi Nieva, Alai WegmaAbstract:Data acquisition systems (DAS) are the basis for building monitoring tools that enable supervision of local and remote systems. Unfortunately, DASs are commonly based on proprietary technologies. The data format usually depends on the industrial process, the fieldbus characteristics or the development platform. Currently, there are many standards of DASs, but none of them offer a well-accepted Application Programming Interface (API). However, all of them comply with the same Conceptual Model. Understanding this Model allows for the significant improvement of the design of a specific DAS. In this paper, we propose a Conceptual Model of a generic DAS. This Model gives researchers an abstraction of DASs and a quasi-formal specification of a generic DAS. It also enables developers to compare the existing standards and/or to propose a new open standard.
Txomi Nieva - One of the best experts on this subject based on the ideXlab platform.
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a Conceptual Model for remote data acquisition systems
Computers in Industry, 2002Co-Authors: Txomi Nieva, Alai WegmaAbstract:Data acquisition systems (DASs) are the basis for building monitoring tools that enable the supervision of local and remote systems. DASs are complex systems. It is difficult for developers to compare proprietary generic DAS products and/or standards, and the design of a specific DAS is costly. In this paper, we propose a Conceptual Model of a generic DAS. This Model gives DAS developers an abstraction of DASs; it enables them to compare existing products and standards; and it provides the DAS developers that aim to develop a specific DAS with a starting point for the design of a specific DAS. We have found that a Conceptual Model of a generic system has many advantages. We propose patterns and techniques that are useful for the development of Conceptual Models of generic systems.
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a Conceptual Model for remote data acquisition systems
Lecture Notes in Computer Science, 2000Co-Authors: Txomi Nieva, Alai WegmaAbstract:Data acquisition systems (DAS) are the basis for building monitoring tools that enable supervision of local and remote systems. Unfortunately, DASs are commonly based on proprietary technologies. The data format usually depends on the industrial process, the fieldbus characteristics or the development platform. Currently, there are many standards of DASs, but none of them offer a well-accepted Application Programming Interface (API). However, all of them comply with the same Conceptual Model. Understanding this Model allows for the significant improvement of the design of a specific DAS. In this paper, we propose a Conceptual Model of a generic DAS. This Model gives researchers an abstraction of DASs and a quasi-formal specification of a generic DAS. It also enables developers to compare the existing standards and/or to propose a new open standard.
Frank Witlox - One of the best experts on this subject based on the ideXlab platform.
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when transport geography meets social psychology toward a Conceptual Model of travel behaviour
Transport Reviews, 2010Co-Authors: Veronique Van Acker, Frank WitloxAbstract:Abstract Many studies Model the effects of the built environment on travel behaviour. Usually, results are controlled for socio‐economic differences and sometimes socio‐psychological differences among respondents. However, these studies do not mention why after all a relationship should exist between travel behaviour and spatial, socio‐economic and personality characteristics. Answering this query involves combining and linking theories stemming from transport geography (e.g. time geography, activity‐based approach) and social psychology (e.g. Theory of Planned Behaviour, Theory of Repeated Behaviour). Using key‐variables from these theories, this paper aims to develop a Conceptual Model for travel behaviour. Comparable to customary theories in transport geography, this Conceptual Model considers travel behaviour as derived from locational behaviour and activity behaviour. But the Conceptual Model adds concepts such as ‘lifestyle’, ‘perceptions’, ‘attitudes’ and ‘preferences’ which indirectly influence tr...
Zhou Bin - One of the best experts on this subject based on the ideXlab platform.
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study on Conceptual Model and developmental pattern of tourism circular economy
Fisheries Economy Research, 2010Co-Authors: Zhou BinAbstract:Tourism circular economy plays an increasingly important role in the tourism sustainable development process.In this paper,detailed analyses were carried out for the fundamental clement,Conceptual Model and developmental pattern of the circular economy of tourism.
Gilles Zurfluh - One of the best experts on this subject based on the ideXlab platform.
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Extraction process of Conceptual Model from a document-oriented NoSQL database
2019 11th International Conference on Knowledge and Systems Engineering (KSE), 2019Co-Authors: Amal Ait Brahim, Rabah Tighilt Ferhat, Gilles ZurfluhAbstract:NoSQL systems are used to manage massive databases that verify 3V: Volume, Variety and Velocity. Generally, these systems are known by the characteristic "schema less" which means that we can create a database without defining the data schema beforehand. This property offers more flexibility and speed by allowing the evolution of the data Model during the exploitation of the base. However, to formulate queries on the database, the user needs a precise knowledge of data Model. In this article, we propose a process for the automatic extraction of the Conceptual Model of a document-oriented NoSQL database. To do this, we use the Model Driven Architecture (MDA) architecture that provides a formal framework for automatic Model transformation. From a NoSQL database, we propose a set of transformation rules with QVT to generate the Conceptual Model in the form of a UML class diagram. An experimentation of the extraction process was carried out on an application in the medical field.
