CAN E-PROCUREMENT BE A PANACEA FOR UPGRADING THE COMPETITION AND EFFICIENCY IN PUBLIC PROCUREMENT?

The aim of this paper is to analyze whether electronic public procurement (EPP) has a positive and statistically significant impact on the efficiency and economy of the public procurement process as well as on broader participation of micro, small and medium enterprises (MSMEs), both of which are recognized as strategic goals of a government. For this purpose, focusing on transparency, efficiency, centralization and bidder participation, we use a database of 65,394 public contracts awarded in the Republic of Slovenia in 2016-2020. Our research shows that there is a strong positive correlation between EPP on the one hand and: (1) higher transparency, expressed by a decreasing share of non-transparent procedures; (2) higher efficiency and economy indicated by the degree of centralization; and (3) broader participation of MSMEs on the other hand. Contrary to expectations, the introduction of the EPP did not increase the intensity of competition and the acceptance of framework agreements as an instrument of centralized and collaborative procurement

S3E 2024 Topical Area, Held as Part of FedCSIS 2024, Belgrade, Serbia, 8–11 September, 2024 and KKIO 2024, Held as Part of SEAA 2024, Paris, France, August 28-30, 2024, Revised Selected Papers

This book constitutes selected and enlarged versions of papers presented at S3E 2024 Topical Area, held as part of FedCSIS 2024, in Belgrade, Serbia, 8–11 September, 2024 and the 25th Conference on Practical Aspects of and Solutions for Software Engineering, KKIO 2024, held as part of SEAA 2024, Paris, France, during August 28-30, 2024. The 3 papers included from KKIO 2024 were selected from 18 submissions (and 10 presentations), and the 5 papers from S3E were selected from 25 submissions (and 12 presentations). The contributions deal with academic research and real-world applications in the field of software engineering

Razvoj sistema za podršku odlučivanju u procesu obuke vojnika

Овај рад представља систем за подршку у одлучивању примењен при обуци младих војника и кадета током прве две године Војне академије, са акцентом на вештине гађања коришћењем DIDEX методологије. За потребе развоја система, праћени су кадети у Војној академији који су учествовали у обуци путем симулатора који омогућава ефикасније усвајање вештина гађања кроз реалистичне сценарије. Истраживање је показало да кадети који су учествовали у обуци путем симулатора, посебно они који су вежбали два пута недељно, имају значајно боље резултате у гађању у поређењу са контролном групом и онима који су вежбали једном недељно. Међутим, просторни капацитет ограничавају употребу симулатора те је неопходно проценити којем полазнику треба понудити обуку путем симулатора. Развијени систем за подршку одлучивању показују да комбинација симулација и циљаног саветовања има потенцијал да значајно побољша резултате у гађању. Такође, развијени систем за подршку одлучивању заснованог на DIDEX методологији пружа персонализоване препоруке за обуку, усмерене на појединачне потребе стрелаца

Clustering Consumer Profiles in Peer-To-Peer Travel Accommodation

The sharing economy has significantly transformed the tourism landscape, introducing peer-to-peer accommodation platforms that have reshaped market dynamics and consumer behaviors. This study analyzes the socio-economic impact of these platforms on tourism. Employing a dataset from a survey of 344 respondents, we conducted a cluster analysis to identify distinct user profiles and their preferences. The analysis reveals two primary user clusters: 'Experienced Sharers' and 'Guided Novices', differentiated by their familiarity with and usage of sharing platforms. Key factors influencing user choices include personal experience, knowledge of shared accommodations, and socio-economic indicators such as city size and monthly income. Our findings underscore the dual impact of peer-to-peer accommodation: while it offers economic opportunities and diverse choices for consumers, it also presents challenges in terms of privacy concerns and the quality of service

Challenges in defining the framework for ESG reporting

ESG has emerged as one of the most prominent trends impacting corporate governance, management, and investment over the last twenty years. Despite its widespread use, there remains a lack of clarity regarding its application in corporate practice and in defining the correct way companies should approach meeting the need for nonfinancial reporting on the way they conduct their business. As trillions of dollars pour into investment products labeled as ESG, and as companies and regulators engage with ESG policies, the term has taken on various interpretations, causing inconsistencies in the ways in which companies create their ESG reports. This article firstly aims to achieve clarity in defining the ESG reporting framework that can be universally used as a standard form of ESG reports. Secondly, it emphasizes the challenges corporate representatives have in making these reports, and the various differences in the way they are constructed. Finally, it offers a critical analysis of different ESG frameworks and gives guidelines on how ESG reporting should be conducte

Development Of A Metaverse Nft Fashion Marketplace

The goal of this paper is the development of the Metaverse NFT fashion marketplace. To develop such a solution, it is necessary to create an appropriate NFT Marketplace, for which the following technologies can be used: Ethereum Blockchain, Solidity, Pinata, MetaMask, Hardhat and ReactJS. The contribution of the paper is to show the methodological procedure of developing such a marketplace and its integration with the Metaverse. The significance of the paper is to assist those involved in fashion design and new technologies in utilizing it as a model for their new creations

Primena algoritma veštačkih kolonija pčela u optimizaciji investicionog portfolija

Основни циљ рада је да истражи могућност примене алгоритма вештачких колонија пчела при оптимизацији портфолија, конструисаног од 10 хеџ фонд индекса, који представљају различите инвестиционе стратегије. Извршена је глобална једнокритеријумска оптимизација по основу 4 одабрана критеријума ризика и конструисана су 4 портфолија. Евалуација успешности спроведена је поређењем приноса конструисаних портфолија са 2 општа хеџ фонд индекса током периода од 3 године и ребалансирањем портфолија на сваких 12 месеци. Портфолио оптимизован по основу критеријума условне вредности под ризиком бележи најбоље перформансе према свим анализираним метрикама, као и најкраће време у зонама негативних приноса. Резултати су показали да се помоћу алгоритма вештачких колонија пчела може конструисати портфолио који нуди упоредиви ниво перформанси у односу на стандардне хеџ фонд индекс

SECURING CRYPTOGRAPHIC SECRETS ON IOT DEVICES: A REVIEW

Common attacks used to exploit vulnerabilities of IoT devices with the goal of exposing cryptographic secrets (keys, signatures, certificates) or bypassing verifications that use these secrets, include fault injection, side channel attacks and firmware extraction. Exposing cryptographic secrets in IoT can cause various problems from data breaches to malicious firmware flashing, leading to violation of data privacy and even substantial damage. The goal of this paper is to review methods for securing cryptographic secrets in IoT with some examples of microcontrollers and processors frequently used in IoT devices

Development Of An Nft Fashion Platform

This 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

The use of Simulation Models for Analyzing Costs in Additive Manufacturing Facilities

In the current market environment, characterized by volatility and uncertainty, informed decisionmaking is crucial for the sustainability and success of entrepreneurial and business ventures. This paper explores the practical application of simulation models as analytical tools, demonstrated through the creation and analysis of a simulation model of an additive manufacturing facility. Simulation models are effective tools for gaining a deeper understanding of real-world systems. Additive manufacturing, as a sustainable alternative to traditional methods, is gaining traction, with fused deposition modeling being particularly notable for its safety, widespread adoption, and cost-effectiveness. By simulating a small to medium-scale manufacturing operation, this paper aims to provide practical insights into the integration of simulation models and small-scale manufacturing facilities that implement additive manufacturing methods. These insights are designed to assist decision-makers in making informed decisions, weighing alternatives, and mitigating unnecessary waste and risk when initiating an entrepreneurial venture