<p>U fokusu ove disertacije je modeliranje i realizacija virtuelne mrežne laboratorije bazirane na tehnologiji za virtuelizaciju. Istraživanje je motivisano razvojem IKT i TCP/IP mreža što je uticalo na važnošću edukacije i stvaranja eksperata u toj oblasti. U početnoj fazi istraživanja, razvijen je model laboratorije sa lokalnim pristupom. Zajedno sa realizacijom laboratorije na osnovu modela, modelirana su i virtuelna mrežna scenarija za upotrebu u nastavi. Sledeća faza istraživanja bila je usmerena u pravcu modeliranja virtuelne mrežne laboratorije sa pristupom na daljinu. Prikazana je arhitektura modela laboratorije, softver i hardver potreban za njenu realizaciju, kao i mrežna scenarija prilagođena novom okruženju. Model je vrednovan posle određenog perioda upotrebe u nastavi iz predmeta Računarske mreže na visokoškolskoj ustanovi. Prvi pristup vrednovanju VNLab sistema je sproveden upotrebom novorazvijenog metoda zasnovanog ne teoriji grubih skupova. Ova metodologija, zajedno sa predloženim modelom, predstavlja jedno od naučnih rezultata disertacije i omogućava predavaču da analizira rad studenata i da uoči razlike između različitih nivoa studentskog znanja. Takođe, ova metoda pomaže predavaču u identifikaciji delova u materijalu za vežbe koji su malo razumljivi studentima. Dalje, virtualna mrežna laboratorija je vrednovana uz pomoć dva kontrolna testa. Treći pristup u evaluaciji modela izvšen je upotrenom formativne procene. Na kraju je ispitana upotrebljivost VNLab sistema poređenjem sa sadržajem preporučenih programa od strane ACM, IEEE i AIS organizacija za 4 obrazovna profila iz domena računarskih nauka: Računarstvo, Računarsko inženjerstvo, Informacione tehnologije i Informacioni sistemi.</p> / <p> In this Thesis the research is focused on modeling and realization of virtual network laboratory based on virtualization technology. This work is motivated with the growing development of ICT technologies and TCP/IP networks which resulted with the growing importance of educated and well trained experts in this field. In the beginning phase of the research, the model of virtual network laboratory with local access is developed. Together with the model and its realization the virtual network scenarios used for learning were modeled as well. The next phase of research is focused on modeling virtual network laboratory with remote access. The architecture of the laboratory model is presented, as well as the hardware and software components of the laboratory and network scenarios. The model is evaluated after the period of usage. The first evaluation of VNLab is conducted using newly developed methodology based on rough set theory. This methodology is one of the scientific results of this work and allows lecturer to analyze student work and to find out the differences between various levels of student knowledge. Also, it allows lecturer to identify<br /> parts in exercise material which is not understandable by students. Furthermore, the<br /> virtual network laboratory model is evaluated with two control tests. The third method of evaluation of the model is done with usage of formative assessment. At the end, usability of VNLab environment in various Computer Science based curriculums is shown by comparing VNLab supported features with recommended curriculums of ACM, IEEE and AIS organizations for 4 areas of computer science: Computer<br /> Science, Computer Engineering, Information Technology and Information Systems</p>
| Identifer | oai:union.ndltd.org:uns.ac.rs/oai:CRISUNS:(BISIS)77357 |
| Date | 01 February 2012 |
| Creators | Dobrilovic Dalibor |
| Contributors | Odadžić Borislav, Janković Slobodan, Trpovski Željen, Ivković Miodrag, Janković Milan |
| Publisher | Univerzitet u Novom Sadu, Tehnički fakultet Mihajlo Pupin u Zrenjaninu, University of Novi Sad, Mihajlo Pupin Technical Faculty at Zrenjanin |
| Source Sets | University of Novi Sad |
| Language | Serbian |
| Detected Language | English |
| Type | PhD thesis |
| Format | application/pdf |
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