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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Logistikos sistemų formalus imitacinis modeliavimas / Formal simulation modeling for logistic systems

Liorenšaitytė, Vilma 16 August 2007 (has links)
Šiuo metu egzistuoja įvairiausių sudėtingų sistemų imitacinių modelių kūrimo technologijų ir priemonių. Šiame darbe aiškinama, kaip imitacinis modelis gali būti integruojamas į verslo valdymo sistemą. Taip pat įvertinama, kad verlo valdymo sistemos gali būti paskirstytos atskiruose kompanijose ar kompiutersiuose. Šiame darbe bus išanalizuota koncepcija, kaip apjungti atskirus imitacinius modelius. Išanalizuota modelių integravimo į informacinę sistemą technologija. Pateikiami gamybos ir paskirstymo imitacinių modelių matematiniai aprašai, naudojant DEVS(Discrete Event Simulation) ir PLA(Piece-Linear Aggregates) specifikacijų metodus. / At present, a large number of modeling and simulation techniques and tools have been developed to deal with complex business systems. In this paper, we concentrate on scenario illustrating, how simulation models can be integrated in to business management system. Different infrastructure forms are possible, because services may be implemented on single machine or distributed throughout several companies’ networks. In this paper a concept will be analyzed - how to combine different simulation models. The technology for involvement of simulation models in to information systems will be created. Also the problem of simulation model transformation in to program code will be solved. For model formalization we can use a method of Piece-Linear Aggregates (PLA) that belongs to the class of time automata model. PLA method is close to Discrete Event Simulation (DEVS) formalism, which is used to create wide purpose simulation models.

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