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Modelling and implementation issues in circuit and network planning tools

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Nurminen, Jukka K.
dc.date.accessioned 2012-02-10T08:48:14Z
dc.date.available 2012-02-10T08:48:14Z
dc.date.issued 2003-06-11
dc.identifier.isbn 951-22-6574-5
dc.identifier.issn 0782-2030
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/2087
dc.description.abstract This thesis consists of studies of modelling and implementation issues for planning tool development. In particularly it emphasizes issues that are relevant for practical, industrial use of mathematical models and algorithms. Using a circuit design and a network planning tool as concrete examples the thesis analyses the practical issues of the development and maintenance of such systems and, especially, how models and algorithms affect these. An important part of the thesis is observations of the changes in the software products over time and analysis what effect and requirements the evolution has for the models and algorithms. The thesis deals with implementation in a wide sense. In addition to the issues of the implementation of a given algorithm this work discusses algorithm selection, development process, users' role, software evolution and how these affect each other. In particular the thesis tries to answer three questions: (i) What kind of models and algorithms to use in the tools? (ii) How to divide the work between the computer and the user? (iii) How to develop such tools? The main part of this research has been conducted using the participant observation research methodology by collecting and analysing experiences in the development of two commercial planning tool products. These results have been tied to the model of planning tool implementation that has been developed as part of this work. In particular the focus has been on how technology interacts with tasks, persons, and organizations. The results are also discussed within the context of established research disciplines such as operations research, software engineering, artificial intelligence, and problems solving environments. One finding of this work is the practical significance of simple algorithms and other building blocks that are easy to implement and enhance. This is often more important than high accuracy or strict optimality. The work also suggests a practical way to measure and compare the implementation complexity of algorithms. Another observation is how complex planning tasks should be divided between the computer and human expert. Examples how this is done using knowledge-technology, intelligent interfaces, and different kind of mathematical models are discussed. Practical issues in the development and evolution of algorithms and software are examined in case studies of routing algorithms and of a network visualization software component. These studies highlight the importance of the incremental development approach and discuss its implications to algorithms and software modules. en
dc.format.extent 31, [108]
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartofseries Research reports / Helsinki University of Technology, Systems Analysis Laboratory. A en
dc.relation.ispartofseries 85 en
dc.relation.haspart Ketonen, T., Lounamaa, P. and Nurminen, J. K., 1988. An electronic design CAD system combining knowledge-based techniques with optimization and simulation. Gero, J. S., (Ed.), Artificial Intelligence in Engineering: Design. Elsevier Science Publishers, Amsterdam, Netherlands, pages 101-118. [article1.pdf] © 2003 by authors and © 1988 Elsevier Science. By permission.
dc.relation.haspart Ketonen, T. and Nurminen, J. K., 1989. A knowledge-based simulation environment for electronics design. Proceedings of the 3rd European Simulation Congress. Edinburgh, Scotland, pages 622-627. [article2.pdf] © 1989 The Society for Modeling and Simulation International (SCS). By permission.
dc.relation.haspart Nurminen, J. K., 1990. RFT design system – experiences in the development and deployment of a Lisp application. Proceedings of the First European Conference on the Practical Applications of Lisp. Cambridge, UK, pages 183-191. [article3.pdf] © 1990 by author.
dc.relation.haspart Akkanen, J. and Nurminen, J. K., 2001. Case study of the evolution of routing algorithms in a network planning tool. The Journal of Systems and Software 58, No. 3, pages 181-198. [article4.pdf] © 2001 Elsevier Science. By permission.
dc.relation.haspart Nurminen, J. K., 2003. Using software complexity measures to analyze algorithms – an experiment with the shortest-paths algorithms. Computers & Operations Research 30, pages 1121-1134. [article5.pdf] © 2003 Elsevier Science. By permission.
dc.relation.haspart Nurminen, J. K., 2003. Models and algorithms for network planning tools – practical experiences. Systems Analysis Laboratory Research Reports E14, Helsinki University of Technology. [article6.pdf] © 2003 by author.
dc.relation.haspart Akkanen, J., Kiss, A. J. and Nurminen, J. K., 2002. Evolution of a software component – experiences with a network editor component. Proceedings of the 6th European Conference on Software Maintenance and Reengineering. Budapest, Hungary, pages 119-125. [article7.pdf] © 2002 IEEE. By permission.
dc.relation.haspart Nurminen, J. K., Karonen, O. and Hätönen, K., 2003. What makes expert systems survive over 10 years – empirical evaluation of several engineering applications. Expert Systems with Applications 24, No. 3, pages 199-211. [article8.pdf] © 2003 Elsevier Science. By permission.
dc.subject.other Physics en
dc.subject.other Electrical engineering en
dc.title Modelling and implementation issues in circuit and network planning tools en
dc.type G5 Artikkeliväitöskirja fi
dc.description.version reviewed en
dc.contributor.department Department of Engineering Physics and Mathematics en
dc.contributor.department Teknillisen fysiikan ja matematiikan osasto fi
dc.subject.keyword algorithm implementation en
dc.subject.keyword modelling en
dc.subject.keyword routing algorithms en
dc.subject.keyword intelligent interfaces en
dc.subject.keyword software evolution en
dc.subject.keyword network planning en
dc.subject.keyword circuit design en
dc.identifier.urn urn:nbn:fi:tkk-000551
dc.type.dcmitype text en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.type.ontasot Doctoral dissertation (article-based) en
dc.contributor.lab Systems Analysis Laboratory en
dc.contributor.lab Systeemianalyysin laboratorio fi
local.aalto.digifolder Aalto_88359
local.aalto.digiauth ask

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