RFOS - Repository of Faculty of Organizational Sciences Univ. of Belgrade
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UNAPREĐENJE ENERGETSKE EFIKASNOSTI U SRBIJI KROZ PRIMENU ESCO MODELA
Full text linkESCO model predstavlja jedan od ključnih mehanizama za postizanje ciljeva energetske efikasnosti. Kompanije za energetske usluge (ESCO), oslanjajući se na svoje ekspertize, omogućavaju realizaciju projekata energetske efikasnosti. Takođe, ESCO model predstavlja inovativan način finansiranja ovih projekata za klijente koji samostalno ne bi mogli da obezbede potrebna sredstva. Donosioci odluka u Republici Srbiji, kao i u drugim zemljama, prepoznali su prednosti ovog modela u sprovođenju projekata energetske efikasnosti, naročito u oblasti renoviranja zgrada. Primeri uspešne realizacije ESCO modela u Republici Srbiji, ukazuju na značajan potencijal ovog mehanizma u smanjenju troškova energije i emisije gasova sa efektom staklene bašte
Quality of Courier Services from the Customer Perspective in the Republic of Serbia
No full textThe recent growth of the e-commerce sector—especially during and after the COVID-19 pandemic—has led to the expansion of the Courier, Express and Parcel (CEP) market. To remain competitive, courier companies had to adjust their business models to meet not only high demand but also customer expectations. The aim of this work is to assess the quality of courier services in the Republic of Serbia from the customers’ perspective. The relevant data was obtained via an electronic survey, which was informed by a comprehensive literature review. The online questionnaire was distributed via social networks (Facebook and Viber) in February 2023 and the subsequent statistical analyses revealed that, in the Republic of Serbia, satisfaction with courier delivery services is affected by the use frequency, customer characteristics (employment status, level of concern regarding personal data security) as well as the courier service characteristics (e.g. responsiveness, timeliness, delivery status, payment options)
Development Of An Nft Fashion Platform
No full textThis research revolves around designing and implementing an NFT fashion platform to enhance community engagement among fashion enthusiasts, designers, and NFT collectors. The platform exclusively offers fashion items as non-fungible tokens (NFTs), suitable for use in the Metaverse, video games, or
traditional NFTs. Key components include developing the platform using React, creating a peer-to-peer (C2C) smart contract using Solidity for secure transactions, integrating with a digital wallet for minting, and utilizing Ethereum (ETH) on the Testnet Sepolia for transactions. The project aims to establish a functional and inclusive NFT fashion platform
Web 3.0 In Digital Fashion
No full textThis study focuses on the development and presentation of an NFT fashion collection using Web3 technologies, particularly Non-Fungible Tokens (NFTs), and explores their transformative impact on creativity, ownership, and interaction in digital fashion. The primary problem is to address the identified challenges of successfully presenting and profiting from digital fashion collections in the current landscape while ensuring authenticity and transparency amid the digital content saturation and preparing for entry into the metaverse. The project involves curating a bespoke NFT fashion collection using tools like Clo3D for 3D garment design and visualization, followed by minting and showcasing on a fashion specific NFT platform. Through this research, the aim is to demonstrate the potential of NFTs and other Web3 technologies to elevate virtual fashion experiences and drive innovation within the digital fashion landscape, highlighting their pivotal role in reshaping the future of the fashion industry
E-government business model based on blockchain: Examining citizens’ readiness
No full textBlockchain technology represents a revolutionary approach to tracking and storing business transactions and data in a transparent, immutable, and distributed way. The goal of this research is twofold. It presents the proposal of a new e-government business model based on blockchain and examines the possibilities of citizens’ readiness to use new e-government services based on blockchain. Introducing blockchain technology in e-government business can contribute to reducing administrative barriers, faster exchange of data, and increased trust among different participants. For the technology to be implemented and sustainable, it must be willingly accepted by government, businesses, and citizens. To examine the citizens’ readiness to use e-government services based on blockchain technology, research was conducted using the UTAUT2 model with extended perceived risk and trust. It was found that the greatest im-portance of the expected behavior is trust, performance expectancy, facilitating conditions, and habit among young citizens
Are You Mature Enough To Create A Project Management Office?
No full textDespite the increasing number of organizations opting to establish and implement Project
Management Offices (PMOs) to enhance competitiveness and efficiently manage extensive project portfolios,
they continue to encounter challenges in realizing the benefits of PMOs. The goal of this research paper is to
explore the application of Project Management Maturity Models (PMMM) as a tool to identify organizational
areas in need of performance improvement following the implementation of Project Management Offices
(PMOs). By utilizing PMMM, we aim to gain valuable insights into the effectiveness of PMO implementation
and to propose strategies to address performance gaps within organizations. The paper focuses on examining
how a selected PMMM is applied to evaluate PMOs in the Transport & Logistics sector. To gain in-depth
understanding of the selected Transport & Logistics company, the research employed a case study approach.
Results show that there are substantial benefits of implementing PMO within the Transport & Logistics sector.
The collected data is utilized to provide useful recommendations for future application of PMMMsm in analyzed
industry. These insights could assist project and strategic managers in reorganizing their operations to improve
project management practices, thereby enhancing project success rates and overall business performance
MODERN TOOLS FOR DIGITAL VISUALIZATION OF BUILT ENVIRONMENTS
No full textThis paper investigates the role of digital visualization tools in improving the design and construction
processes within the Architecture, Engineering and Construction (AEC) industry. It examines a spectrum of
advanced technologies such as Building Information Modeling (BIM), Computer-Aided Design (CAD), 3D
Modeling and Geographic Information Systems (GIS), along with immersive technologies like Virtual and
Augmented Reality (VR/AR). These tools can be used separately or jointly in order to provide detailed visual
representations and interactive simulations of built environments. Such representations and simulations can
then support stakeholders with information needed for improved decision making and project efficiency. Having
in mind different use cases of tools for digital visualization, the paper presents various technologies and specific
tools used in urban planning, architecture design and development of built environments. The aim is to
emphasize the impact of these digital tools in visualizing and shaping future built environments, at the same
time encouraging their wider adoption in the industry
A Systematic Approach for Converting Relational to Graph Databases
No full textIn database design, a system can be abstracted into three conceptual elements: a collection of
entities, the relationships among them, and the attributes describing each entity. The database
serves as a system for storing data through the mentioned conceptual elements. Different
database design approaches are customized to suit particular use cases e.g. the comparison
between graph databases and relational databases. Graph databases are particularly well
suited for handling data with dense relationships, as they are designed to store and represent
complex networks of interconnected data. Relational databases pose a challenge in scenarios
where the graph would be better suited. The migration process involves restructuring the data
and adapting the application logic which can be resource-intensive and time-consuming. Current
solutions for database migration are often too generalized, resulting in a lack of effectiveness in
addressing common migration cases. These solutions fail to provide the necessary level of
specificity required to overcome the challenges that arise during the migration process. This paper
proposes a structured approach for transferring data from a relational to a graph database. The
proposed approach introduces strategies dedicated to the conversion of specific relational elements, such as associations, specializations, and many-to-many relationships. The approach
was tested using Microsoft’s Northwind sample database. Upon transferring the data from a
relational to a graph database, the paper reports that queries produced identical results, indicating
that the details of the data were accurately preserved during the migration. Following an
experimental analysis, the results indicate that the proposed approach exhibits better performance,
as evidenced by shorter query execution times. These findings affirm the feasibility and veracity of
the proposed approach