After COVID-19, new accreditation standards include the need for developing better learning and teaching environments. This will be supported and connected with digitization, entrepreneurship, social inclusion, and a circular economy. The orientation towards equity and quality in education clearly imposes the need for an individual approach to each student separately. This situation is especially pronounced in higher education institutions in the field of technology, whose primary goal is very often individual training for use of highly specialized software and hardware tools. In such a situation, it is necessary to move away from the classical ex-cathedra methodology and develop student-centered learning environments. Global accreditation systems for teaching, learning, practice, and business communication can be simplified using blockchain. On the basis of blockchain technology (BCTs), this paper proposes a Collaborative Learning and Student Work Evaluation (CLSW) model that includes a multi-frontal teaching method (VFN) and combines scientific peer-review standards. BCTs are used to protect student project and assessment data storage and transmission. Assisting higher education institutions in finding “employable capabilities” of proactive students is the idea of CLSW. Before implementing the CLSW paradigm, a poll of lecturers’ views on BCTs was conducted. The poll results show a desire and willingness to teach with BCTs. The model’s fundamental capabilities and the key participants’ duties were described in a project framework. Additionally, this research and proposed model can improve educational process sustainability in general, as it is an open platform easily accessible by all the interested parties, thus contributing to life-long learning.

In this paper, we consider the problem of minimising the cost of data transmission as a function of the capacity of telecommunication links. To solve this problem, we first formulated a mathematical model, and then we designed and developed a software that enables the optimisation of the given or randomly generated telecommunications network. Declarative programming is a good choice for optimisation problems because it is enough to specify only the relations that must be satisfied, without giving any effective procedure for finding the values for the decision variables. To test the application, we developed a software that randomly generates a telecommunications network that meets the given requirements. This enables us to test the application on an arbitrary number of different telecommunication networks with different numbers of nodes and links, and analyse the impact of changing network parameters on the flow and results of the optimisation. As telecommunications networks operate in conditions of uncertainty, the subject of special analysis was the potential failure of some of the network links. The paper presents and thoroughly analyses the optimisation results for several selected networks, as well as summary results for a number of telecommunications networks.

Companies are making great efforts to develop personalized offers for customers

The Forthy-First Symposium on New Technologies in Postal and Telecommunications Traffic (PosTel 2023) is scheduled for November 28 and 29, 2023. The symposium is organized by the Department of Postal and Telecommunication Traffic of the Faculty of Transport and Traffic Engineering at the University of Belgrade. The co-organizers are: a state-owned enterprise, "Post of Serbia," "Telekom Srbija," and the Regulatory Agency for Electronic Communications and Postal Services (RATEL). The symposium is supported by the Ministry of Education, Science, and Technological Development and the Ministry of Trade, Tourism, and Telecommunications of the Republic of Serbia. Zbornik radova XLI Simpozijuma o novim tehnologijama u poštanskom i telekomunikacionom saobraćaju PosTel 2023, sadrži rezultate istraživanja iz oblasti poštanskog i telekomunikacionog saobraćaja u proteklom jednogodišnjem periodu. Organizator Simpozijuma je Odsek za poštanski i telekomunikacioni saobraćaj Saobraćajnog fakulteta u Beogradu. Suorganizatori su: JP ″Pošta Srbije″, ″Telekom Srbija″ a.d. i Regulatorno telo za elektronske komunikacije i poštanske usluge – RATEL. Pokrovitelji su: Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije i Ministarstvo informisanja i telekomunikacija Republike Srbije. Tematika Simpozijuma vezana je za aktuelna istraživanja u oblastima od posebnog značaja za poštanski i telekomunikacioni saobraćaj, kod nas i u okruženju. Radovi su po pozivu i svrstani su u tri sekcije: - Menadžment procesa u poštanskom i telekomunikacionom saobraćaju, - Poštanski saobraćaj, mreže i servisi, - Telekomunikacioni saobraćaj, mreže i servisi.