RFOS - Repository of Faculty of Organizational Sciences Univ. of Belgrade
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Shadow IT kao izvor inovacija u organizacijama
No full textU radu se razmatra fenomen Shadow IT kao izvor inovacija u preduzećima. Shadow IT se odnosi na upotrebu hardvera, softvera, rešenja i usluga iz oblasti informacionih tehnologija (IT) unutar organizacije bez znanja ili odobrenja IT odeljenja. Cilj istraživanja je identifikovanje i klasifikacija prednosti i izazova fenomena Shadow IT, i definisanje smernica koje je neophodno uzeti u razmatranje prilikom kreiranja strategije za upravljanje inovacijama koje proizlaze iz takve prakse. U skladu sa definisanim ciljem, sproveden je sistematski pregled literature. Na osnovu pregleda literature, analizirani su pozitivni i negativni efekti ovog fenomena u kontekstu inovacija. Rezultati rada predstavljaju polaznu osnovu za dalja istraživanja u ovoj oblasti, kao i smernice kompanijama i zaposlenima zaduženim za inovacije
Tailor-made ESP teaching materials for HEIs – two case studies
No full textCommercially available teaching materials for Languages for Specific Purposes typically aim to cater to the needs of a wide range of students, even within a specific professional area. Therefore, when dealing with a more specialized purpose, as is the case with two Higher Education Institutions (HEIs) under review in this paper, additional time, resources, and effort are required to produce more tailored materials that suit the needs of specific target groups. This paper presents two case studies of ESP teaching materials design resulting in the creation of two tailor-made coursebooks used in two Serbian HEIs specializing in agriculture and food technology, and management, respectively. The paper outlines the materials writing process and compares the final products (i.e. the two ESP coursebooks) by encompassing various aspects, including course rationale and syllabi (such as learning outcomes, aims and objectives, students’ entry levels, syllabi framework types, etc.), approaches to needs analysis, content choice and sequencing, copyright and other issues, theoretical and methodological frameworks, the timeline and the steps in the process. Despite the differences in target groups, teaching content, learning outcome, established frameworks, etc., the two writing processes and their final products underwent similar steps and identified comparable limitations and areas of improvement. Both processes also share a key takeaway: tailor-made ESP coursebook writing process, though arduous and time-consuming, is an effort worth taking
A System for Game-based Smart Tourism
No full textThis article presents a game-based learning model designed for tourists in a smart city. The goal is to increase tourists’ sightseeing experience, tourist spot visitation rates, learning, and satisfaction. The educational game was designed using the advanced web, mobile, IoT, augmented reality, and blockchain technologies. The game aims to guide tourists and test their knowledge about a city. The rewards selected to motivate players' progress in the game were defined as tokens saved on the blockchain and used to claim prizes. We present the architecture of the proposed system and the business model for the sustainable operation of the proposed system. The proposed approach is expected to contribute to introducing smart tourism services and promoting the general experience of tourists
Утицај пандемије COVID-19 на ланце снабдевања кафом
No full textThe purpose of this paper is understanding of the impact of the COVID-19 pandemic on coffee supply chains. The research domain includes the features, processes and participants that are characteristic for coffee supply chains, as well as the consequences and impact of the pandemic on those chains. The methodological approach includes a case study in which coffee supply chains are analized using Lavazza as an example. The result of the paper is the understanding of how coffee supply chains have responded to the challenges they have faced amid the pandemic
MAPIRANJE OBLASTI CIRKULARNE EKONOMIJE: BIBLIOMETRIJSKA ODISEJA
No full textU svetu u kome stvaranje ogromnih količina otpada predstavlja jedan od najvažnijih ekoloških problema, postojeća teorija i praksa linearne ekonomije ne može više da obezbedi rešenja u kontekstu razvoja koji može da obezbedi neophodnu održivost. Uspostavljanje ekvilibrijuma u odnosu između ljudi i životne sredine podrazumeva duboko razumevanje i uvažavanje svih procesa i stanovnika planete Zemlje, kao i svih ekosistema i postojećih habitata. Jedan metod je podržavanje kružnih tokova koji vladu u prirodi od njenog početka i njihovo preslikavanje u privredi. Iz ovih razloga, brojni istraživači i naučnici su usmerili svoj rad i studije na cirkularnu ekonomiju. Bibliometrijska analiza literature u ovoj oblasti prikazuje značajne istraživačke napore i promene čija primena je neophodna u privrednim praksama društvima širom sveta.In a world where massive waste generation is one of the most prominent environmental concerns, the current theory and practise of the linear economy cannot provide any more solutions in the context of development that can ensure the necessary sustainability. Restoring equilibrium in the relationship between humans and the environment requires an in-depth unedrstanding and respect of all the processes and inhabitants of planet Earth, as well as all its ecosystems and present habitats. One method is to mimic the circular flows that have ruled nature since its beginnings and reproduce them in the economy. For these reasons, numerous researchers and scientists have concentrated their works and studies on the circular economy. The bibliometric analysis of the literature in this field reveals significant research efforts and shifts, and which are crucial to be used in the economic practises of societies around the globe
Conceptual Framework for Measuring the Success of Digital Transformation Projects
No full textThe purpose of this paper is to examine whether it is possible to define a conceptual framework for measuring the success of digital transformation projects, which will comprehensively and integrally respond to the complexity of this undertaking. In accordance with that, a review of the literature on the concept of project success was carried out, with a special emphasis on the success and critical success factors of software projects. Based on the methodological criteria obtained in the literature review, the concept and characteristics of digital transformation projects were analyzed. The key results obtained in this work are the multidimensional concept of success, which consists of three dimensions, software project success, digital transformation success, strategic digital transformation success, as well as identified groups of critical success factors for each of the success dimensions. In addition to the identification and grouping of critical success factors within the success dimensions, a hierarchy of success levels was identified from the success of software part of project to the strategic success. Based on the proposed conceptual model, future research directions are defined, which include the development of a balanced set of performance measures for each group of critical success factors and the implementation of empirical research. The results of this work can serve the scientific community, but also people in practice to critically look at current attitudes and practices in this area
The Application of Product-Service System in Telecommunications
No full textTelecommunications market is a turbulent, competitive, technology and digitalization driven environment. Widespread market, different customer needs, complexity and diversity of products demand new concepts in telecommunications. The objective of the paper is to investigate the application of the product-service system and different forms of servitization in the telecommunications industry. Following a case study approach, the relationship between supplier (the one who develops and offers complete service) and customer (mobile operator) is analyzed. The research includes the analysis of a process for supplier selection for one cloud solution. Three different servitization examples are compared and evaluated. Key elements used for studying cases are ownership of the service, payment model, maintenance and development capabilities. The study offers insight into how companies create integrated packets of products and services and shows examples of good practices. Research confirms that a product-service system can be beneficial for both suppliers and customers in the telecommunications industry. Servitization can give a competitive advantage to the supplier. Servitization can reduce risk and decrease initial investments in the new systems to the customer. The findings of this paper complement the literature for product-service system and offer concrete inputs for companies in terms of how to better organize their business and gain advantage on the market, based on real-life examples
Extracting decision models for ski injury prediction from data
No full textCreating decision models for risk assessment of ski injuries is a challenging task. Ski injuries are rare events, but they carry a high cost, that is, can cause working or movement disabilities. Usually, ski risk assessment is performed on small-scale, case-controlled studies where the effect of a single factor is evaluated. Recently, data mining and machine learning algorithms are being employed for ski risk assessment and injury prediction. However, these models do not generally satisfy the need for interpretation of the decision model, do not provide explanations for the predictions, and in general do not ensure the completeness and consistency of decision rules. To make data mining and machine learning models useful, one needs to implement the aforementioned properties. Decision support systems are expected to have these properties; however, the process of building such decision support systems is still tedious: it has to consider human biases, assumptions, and subjective values, as well as focus on the decision problem being solved. We propose a method for extraction of decision models from data at hand. Our method DIDEX, Data Induced DEcision eXpert, builds models that have desirable properties for inclusion in decision support systems. The proposed method is used to build a decision model for ski injury prediction based on data from Mt. Kopaonik ski resort, Serbia. The results show that DIDEX generates up to a five times simpler model compared to the existing domain expert DEX models while having a 6% better predictive accuracy. Additionally, its predictive accuracy is comparable to similar machine learning algorithms, such as decision tree classifiers, random forest, and logistic regression
Resilient sustainable investment in digital education technology: A stakeholder-centric decision support model under uncertainty
No full textInvestment in education technology (EdTech) is a complex decision problem for universities during the post-Covid era. With the objective to assess the quality and adoptability of education supply chain, a novel analyt-ical evaluation model approach is proposed, based on quality function deployment and combinative distance-based assessment. To deal with uncertainty in the evaluation process, fuzzy theory is integrated into the model. To establish the house of quality matrix, technology-based stakeholders' requirements were identified and classified in four dimensions: economic and financial, technology adoption, sustainability, competencies. Moreover, nine supplier criteria were assumed. Based on expert evaluations, the results suggest that financial credit and supplier collaboration are the most prominent attributes to evaluate suppliers, while environmental commitment is sorted as the least important criterion. The results reveal that the three dominant suppliers, which provide the best response to the identified criteria, are providers of cloud service technology