4 research outputs found
Geração de esqueletos para sistemas de ETL a partir de redes de Petri colorida
As Redes de Petri Coloridas são uma linguagem gráfica com uma semântica bem definida, que permite o desenho, especificação, simulação e validação de sistemas, cujos processos a modelar exijam características específicas de comunicação, concorrência e sincronização entre si. A nível aplicacional, as Redes de Petri Coloridas surgem em áreas muito diferentes, tais como a especificação de protocolos de comunicação, sistemas de controlo, sistemas de hardware ou de sistemas de software. Devido às suas características as Redes de Petri Coloridas foram adotadas, também, na modelação de sistemas de ETL (Extract-Transformation-Load). Meta-tarefas como Change Data Capture ou Surrogate Key Pipelining, frequentemente encontradas em sistemas de ETL convencionais, foram modeladas e validadas através do uso de redes de Petri Coloridas. Tal sustenta, de forma bastante efetiva, o objetivo principal deste trabalho de dissertação: desenvolver e implementar um sistema para a geração de esqueletos para sistemas de ETL a partir da correspondente Rede de Petri Colorida.Coloured Petri Nets are a graphical language with a well-formed semantic, that allows the design,
specification, simulation, and validation of systems, which specific characteristics such as,
communication, concurrency and synchronization have a main role in the processes to model. At
application level, Coloured Petri Nets are used in a wide variety of scientific areas, such as
communication protocol, control systems, hardware systems or software systems. Due their
characteristics Coloured Petri Nets were also adopted in modeling ETL (Extract-TransformationLoad)
systems. Meta-tasks like Change Data Capture or Surrogate Key Pipelining, that are
frequently founded in conventional ETL system, were modeling and validated using Coloured Petri
Nets. All this support, quite effectively, the main propose of this dissertation work: develop and
implement a system to generating skeletons to ETL systems from the corresponding Coloured Petri
Nets
Fifth Workshop and Tutorial on Practical Use of Coloured Petri Nets and the CPN Tools Aarhus, Denmark, October 8-11, 2004
This booklet contains the proceedings of the Fifth Workshop on Practical Use of Coloured Petri Nets and the CPN Tools, October 8-11, 2004. The workshop is organised by the CPN group at the Department of Computer Science, University of Aarhus, Denmark. The papers are also available in electronic form via the web pages: http://www.daimi.au.dk/CPnets/workshop0
Tenth Workshop and Tutorial on Practical Use of Coloured Petri Nets and the CPN Tools Aarhus, Denmark, October 19-21, 2009
This booklet contains the proceedings of the Tenth Workshop on Practical Use of Coloured Petri Nets and the CPN Tools, October 19-21, 2009. The workshop is organised by the CPN group at the Department of Computer Science, University of Aarhus, Denmark. The papers are also available in electronic form via the web pages: http://www.cs.au.dk/CPnets/events/workshop0
Seventh Workshop and Tutorial on Practical Use of Coloured Petri Nets and the CPN Tools, Aarhus, Denmark, October 24-26, 2006
This booklet contains the proceedings of the Seventh Workshop on Practical Use of Coloured Petri Nets and the CPN Tools, October 24-26, 2006. The workshop is organised by the CPN group at the Department of Computer Science, University of Aarhus, Denmark. The papers are also available in electronic form via the web pages: http://www.daimi.au.dk/CPnets/workshop0