Področje diplomskega dela je predstavitev jezika Archimate ter njegova uporaba za modeliranje arhitekture poslovnih sistemov. Prvi del se osredotoča na sámo področje poslovno-informacijskih arhitektur, zno¬traj katerega smo le-te predstavili, raziskali njihovo vlogo pri obvladovanju informatike ter poiskali prednosti, ki jih arhitektura prinaša v poslovni sistem. V drugem delu smo predstavili jezik Archimate, njegovo strukturo ter pripadajoče metamodele in vidike. Predstavili in analizirali smo tudi splošna in namenska orodja, ki podpirajo modeliranje v jeziku Archimate ter raziskali splošno priljubljenost in razširjenost uporabe jezika Archimate. Pregledali smo še sorodne pristope k modeliranju arhitektur ter podrobneje predstavili pristop TOGAF in Zachman. V zadnjem delu smo opisali empirični del diplomskega dela, kjer smo na primeru Študentskih domov Univerze v Mariboru, izdelali študijo primera uporabe jezika Archimate, ter z modeliranjem nekaterih izbranih delov poslovnega sistema, prikazali praktično modeliranje z jezikom Archimate. Na koncu smo povzeli rezultate študije primera in sprejeli oziroma zavrnili hipoteze, postavljene na začetku. The thesis deals with presenting ArchiMate language and its use at modelling of enterprise architecture. Firstly we focused on the area of enterprise architecture. We presented them and researched their role at controlling the informatics and presented the advantages that the architecture brings into the business process. Secondly we presented the ArciMate language, its structure and accompanying metamodels and views. We presented and analysed general and specific tools, which support modelling with ArchiMate language. We also reviewed similar approaches at modelling architectures and presented the TOGAF method and Zachman in more detail. In the last part of the thesis we included the empirical part of the topic, and presented case study of the use of ArchiMate language at organisation of University of Maribor Student dormitories. With modelling of some parts of the business process we showed practical use of modelling with ArchiMate language. Lastly we proved or denied the hypothesis set at the beginning of our research with results of our case study.