In this paper, a new multi-criteria decision-making procedure is presented, which captures preferential information in the form of the threshold model. It is based on the ELECTRE-like sorting analysis restricted by the localization principle, which enables high adaptability of the decision model and reduces the cognitive load imposed on the decision-makers. It lays the foundation for the introduction of three concepts that have been previously insufficiently supported by outranking methods -semiautomatic derivation of criteria weights according to the selective effects of discordance and veto thresholds, convergent group consensus seeking, and autonomous multiagent negotiation. The interdependent principles are justified, and the methodological solutions underlying their implementation are provided.

No abstract

Methods for group decision analysis are based on various preference and aggregation models, and may exhibit a significant level of complexity that is perceived by decision-makers. It is therefore essential to apply appropriate methods and keep the complexity within controllable limits. In the paper, factors that influence the user-perceivable complexity are systematically specified, correlated and decomposed into measurable units. They address cognitive load, asynchronous interaction, autonomous guidance and conflict resolution, thoroughness and depth of analysis, problem structuring, efficiency of judgements, imprecision, psychophysical applicability, etc. In addition, several mechanisms and techniques to reduce complexity are presented, evaluated and systematized in accordance with the factors of the framework.

No abstract

No abstract

No abstract

v Mariboru Vse pravice pridržane. Brez pisnega dovoljenja založnika je prepovedano reproduciranje, distribuiranje, predelava ali druga uporaba tega dela ali njegovih delov v kakršnemkoli obsegu ali postopku, vključno s fotokopiranjem, tiskanjem ali shranjevanjem v elektronski obliki. CIP-Kataložni zapis o publikaciji Univerzitetna knjižnica Maribor 004.946.5:004.7(082)

Blockchain technology is disrupting the business landscape in many industries. Energy sector is conservative and has specific reliability and security requirements therefore the possible application range is relatively narrow. Authors research the benefits and shortcomings of the applied blockchain technology and suggest the possible areas in energy sector to develop the solutions based on blockchain principles. Usability of blockchain principles is under research and proper aim has to be defined in order to follow the energy utility goals. The aim od the article is to define the environment and methodology for application of blochchain principles for solving operational technology challenges at energy utilities. Authors also define the possible threats that do not enable fast technology adoption in power utilitiesbiggest of which is cyber security.