Many significant real-life applications, e.g., air-craft design and environmental modelling, involve simulations based on the numerical solution of systems of time-dependent partial differential equations. In general,...
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This paper proposes a generalized definition for fuzzy comparators on complex fuzzy datatypes like fuzzy collections with conjunctive semantics and fuzzy objects. This definition and its implementation on a Fuzzy Obje...
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In this paper, the performance issues of objects with roles are addressed. In our previous paper, Double Signature Indexing Scheme (DSIS) was proposed for a dynamic object-oriented database programming language with r...
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Monitoring and recording of the changes which are stored (recorded) in the databases is very essential Withdrawal of the changes without compromising data integrity in relational databases is also a significant issue....
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Database Schema Evolution and Meta-Modeling : 9Th International Workshop on Foundations of Models and Languages for Data and objects, Fomlado/Demm 2000, Dagstuhl Castle, Germany, September 18-21, 2000 : Selected Paper...
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Database Schema Evolution and Meta-Modeling : 9Th International Workshop on Foundations of Models and Languages for Data and objects, Fomlado/Demm 2000, Dagstuhl Castle, Germany, September 18-21, 2000 : Selected Papers by International Workshop on Foundations of Models; Languages for Data; objects (9Th : 2000 Dagstuhl, Wadern, Germany); Balsters, Herman, 1952-; Brock, Bert De; Conrad, S. (Stefan); published by Berlin ; New York : Springer
Relational database management systems translate queries posed in a non-procedural language into an efficiently executable plan. The plan consists of primitive database operators that use underlying database managemen...
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Although many temporal extensions of the relational data model have been proposed, there is no comparable amount of work in the context of object-oriented data models. Moreover, extensions to the relational model have...
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As a result of the wide acceptance of object-oriented database systems, performance related issues become a crucial factor in the success of object-oriented database systems. To improve performance the database system...
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With current database technology trends, there is an increasing need to specify and handle complex schema changes. The existing support for schema evolution in current OODB systems is limited to a pre-defined taxonomy...
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Automated assembly lines for highly innovative and individualized products lead to advanced requirements for flexibility and scalability. Especially the consistent transfer and reuse of processes requires the implemen...
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ISBN:
(纸本)9789604742301
Automated assembly lines for highly innovative and individualized products lead to advanced requirements for flexibility and scalability. Especially the consistent transfer and reuse of processes requires the implementation of modern, scalable control systems in order to be prepared for product changes or changes of the underlying automation hardware. We propose a modular system architecture that not only allows for the distributed control but also for the distributed simulation of such assembly lines. Its flexibility is based on an agent-based architecture connected to an active communication hub and controlled by a central supervisor. To implement the system, we combined our expertise in robotic simulation and virtual production with our experience in GIS (geographic information systems) applications and object-oriented databases.
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