20.500.12556/RUL-103460 Razvoj decentraliziranih aplikacij na platformi Ethereum Decentralized application development on Ethereum platform V diplomski nalogi smo opisali osnovne koncepte decentraliziranih aplikacij in decentraliziranega hranjenja podatkov. Proučili smo tehnologije Ethereum, BigchainDB in Oraclize. Primerjali smo decentralizirane aplikacije z modernimi oblačnimi aplikacijami ter decentralizirane podatkovne baze s klasičnimi podatkovnimi bazami. Ugotovili smo, da decentralizirane aplikacije in podatkovne baze omogočajo uporabniku večji nadzor pri uporabi in so bolj odporne na izpade, cenzuro ter regulacijo. Nadalje so decentralizirane aplikacije omejene pri svoji hitrosti izvajanja in kompleksnosti kode v poslovni logiki. To je posledica počasnih potrjevanj transakcij in cene izvajanja kode v verigi blokov. Omejitve imajo tudi pri pridobivanju podatkov izven verige blokov, saj koda v verigi blokov ne more neposredno dostopati do zunanjih podatkov. Identicirane omejitve je potrebno nasloviti pri razvoju decentraliziranih aplikacij, kar smo nazorno prikazali na praktičnem primeru. In the diploma thesis we described the basic concepts of decentralized applications and decentralized data storage. We studied the Ethereum, BigchainDB and Oraclize technologies. In this work we carried out a detailed comparison between decentralized applications and cloud native applications, together with decentralized databases and classic databases. We discovered that decentralized applications and databases give the user more control, while being more resistant to faults, censorship and regulation. During our work, we realized that the current decentralized applications are limited at execution speed and code complexity. This is caused by the slow transaction conrmation and code execution costs on the blockchain. They also have a limited access to outside data, because the code inside the blockchain can't access external sources directly. The identied limitations must be addressed during the development of decentralized applications, which we showcase on a practical example. decentralizirana aplikacija decentralizirana podatkovna baza orakel Ethereum BigchainDB Oraclize. decentralized application decentralized database oracle Ethereum BigchainDB Oraclize. true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-09-18 15:55:04 2018-09-18 15:55:08 2022-08-16 03:42:14 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 21781 Kozelj_Aljaz_-_Razvoj_decentraliziranih_aplikacij_na_platformi_Ethereum.pdf Kozelj_Aljaz_-_Razvoj_decentraliziranih_aplikacij_na_platformi_Ethereum.pdf 1 E8AE03EC7A4D3442021024D83EFC7A65 57d39f9a9979a9ec6030c3c7bd8c524d559aba7398280f76293da10890947d97 d0937db5-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=113897 Fakulteta za računalništvo in informatiko 0 0 0