Eszter Sós

57825495200

Publications - 8

Stakeholders analysis of deposit refund waste collection system based on quality function deployment method

P. Földesi Eszter Sós Marah Almelhem

Publication Name: Cleaner Waste Systems

Publication Date: 2025-12-01

Volume: 12

Issue: Unknown

Page Range: Unknown

Description:

This study proposes a structured conceptual model for analyzing stakeholder complexity within Hungary's newly implemented Deposit Refund System (DRS), using the Quality Function Deployment (QFD) framework. A House of Quality (HoQ) matrix was developed to map the relationships between the functional features of the system and the specific requirements of key stakeholders, including government, system operators, manufacturers, retailers, and customers. A qualitative focus group method was applied to gather expert input and evaluate system features based on stakeholder experience and the evolving Hungarian context. Rather than aiming for statistical generalization, the study focuses on illustrating how structured modeling can reveal stakeholder trade-offs and support strategic alignment in complex waste collection systems. Findings highlight areas of convergence and divergence among stakeholders and demonstrate the utility of the QFD-based approach in designing adaptable, stakeholder-informed DRS models. The results are particularly relevant for countries in the early stages of DRS implementation or those seeking to redesign existing systems to better integrate technical feasibility and stakeholder priorities.

Open Access: Yes

DOI: 10.1016/j.clwas.2025.100370

Developing sustainable logistic strategies in the context of cognitive biases

P. Földesi Eszter Sós

Publication Name: Infocommunications Journal

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 110-118

Description:

Cognitive biases often occur even in the decision-making process of highly qualified company managers due to the drive for efficiency and time pressure in operations. At the same time, there are also long-term strategic decisions where time pressure is no longer a factor, and yet cognitive bias appears, which has to be considered properly. In strategic issues, decision- makers tend to see their wishes and desires rather than the objective reality. The proposed system of fuzzy indicators based on technical and objective data supports decision-making between logistics strategies by mitigating cognitive biases, which is extremely important in the logistics field, where the decisions have to be made partly based on subjective, vague, or uncertain parameters.

Open Access: Yes

DOI: 10.36244/ICJ.2024.5.13

Assessing and evaluating potential systems resilience

P. Földesi Eszter Sós Borbála Tamás

Publication Name: 2024 IEEE 15th International Conference on Cognitive Infocommunications Coginfocom 2024

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 43-50

Description:

The hierarchy of semantic networks can also be observed in the functioning of economic systems. There are uncertainties in semantic networks, meaning that the classification of different attributes is not always clear. The same uncertainty is also present, for example, in the design of logistics strategies as a sub-strategy of the economy, which can lead to inconsistencies between the parameters of the system. It is important for a system to be resilient to both internal and external influences, and it is, therefore, necessary to develop a hierarchy of system parameters based on the semantic network's method and to examine the relationship between parameters in order to achieve resilience and long-term sustainability.

Open Access: Yes

DOI: 10.1109/CogInfoCom63007.2024.10894735

Effects of Cognitive Biases and Their Fuzzy Measure During Freight Transportation

P. Földesi Adrián Horváth Eszter Sós

Publication Name: Lecture Notes in Logistics

Publication Date: 2023-01-01

Volume: Unknown

Issue: Unknown

Page Range: 29-43

Description:

Cognitive biases affect all aspects of our lives, including the decision-making process related to the routing of freight transport. In the process of using human-machine systems, people upload rational and objective algorithms in order to obtain the best possible results in the route planning process. Nevertheless, during the route choice process, human reasoning, based on experience and assumptions, overrides the choice of the machine, that is, cognitive biases appear in the decision-making processes. For this reason, we investigate how an objective system of interests becomes a cognitive bias during the process of making decisions related to the route choice of freight transport by motor vehicle. Furthermore, we present a methodology to estimate fuzzy measures of route-related deviations concerning time and distance, which may be indicative of the emergence of cognitive biases.

Open Access: Yes

DOI: 10.1007/978-3-031-28236-2_3

Application of the QFD Technique Method in Logistics Strategy

P. Földesi Eszter Sós

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2023-01-01

Volume: 20

Issue: 2

Page Range: 145-164

Description:

One of the most significant corporate challenges today is to meet customer expectations. In order for customer satisfaction to be achieved, it is necessary to review the entire corporate system and related processes and coordinate the various corporate strategies. In the recent past, it was widely regarded as sufficient by managers to develop the right marketing strategy in order to sell a product. However, there is currently a discussion as to whether a marketing logistics strategy as a well-designed logistics environment is needed to sell the product and thereby gain customer satisfaction. In this article, we present the Quality Function Deployment (QFD) technique, an effective tool for transforming consumer needs into technical, quality characteristics. The method of QFD technique can also be successfully applied in the field of logistics. Utilizing it ensures the possibility of examining the impact of the sub-areas and processes of marketing and logistics services on the basis of customer needs. In addition, visual control can be used to illustrate that whilst two products require the same logistics strategy, lead times already cause significant differences in the interaction of logistics processes and technological parameters. The analysis also highlights the shortcomings of the logistics environment, thereby supporting the decision-making of the company management in both marketing and logistics strategy planning.

Open Access: Yes

DOI: 10.12700/APH.20.2.2023.2.8

Assessing logistics strategy issues under cognitive biases

P. Földesi Eszter Sós

Publication Name: 2023 14th IEEE International Conference on Cognitive Infocommunications Coginfocom 2023

Publication Date: 2023-01-01

Volume: Unknown

Issue: Unknown

Page Range: 141-146

Description:

Cognitive biases often appear in the decision-making process of highly qualified managers of companies because of the drive for efficiency and the time pressure in operation. There are also long-term strategic decisions where there is no longer time pressure, and yet cognitive bias appears, for example during the selection between the Push and Pull systems in logistics. The description of the actual situation has to be quantified because communication between human-machine systems, as defined in cognitive info-communication, is only viable if cognitive biases in decision-making can be considered properly. We propose fuzzy approach and measures that can assess whether the production uses a Push or Pull logistics strategy for a specific product or for the entire company.

Open Access: Yes

DOI: 10.1109/CogInfoCom59411.2023.10397543

Fuzzy QFD assessment of logistics coherence

P. Földesi Eszter Sós

Publication Name: 2022 IEEE 6th International Conference on Logistics Operations Management Gol 2022

Publication Date: 2022-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Accomplishing purchaser compliance is one of the significant corporate challenges of our time. All products are sold together with the associated logistics service, so it is important that the logistics environment of a company is properly designed in order to meet the objectives of the logistics strategy. In this paper, we present the combined application of Fuzzy system and Quality Function Deployment (QFD) techniques, which are already used effectively in many areas to study sub-processes. Generally, input values are determined as a fuzzy number, in this paper we use fuzzy to evaluate the values. In addition, we have developed a system to examine the compatibility of specific strategic tools and objectives with each other and the usefulness of specific elements for both the customer and the service provider. Using the new approach analysis, we developed a Fuzzy QFD assessment method, we can examine the coherence of logistics processes and technological parameters based on customer needs by comparing different options and alternative solutions. The analysis sheds light on the internal coherence of logistics strategies, thereby clarifying whether the aims that the company has defined can be achieved with the available, planned tools.

Open Access: Yes

DOI: 10.1109/GOL53975.2022.9820009

The impact of marketing strategy on logistics decisions and the implementation of JIT

P. Földesi Eszter Sós

Publication Name: Acta Technica Jaurinensis

Publication Date: 2021-11-24

Volume: 14

Issue: 4

Page Range: 364-376

Description:

Marketing has a significant impact on logistics systems and corporate performance, so it is nowadays necessary to define a marketing logistics strategy in the lives of larger companies so that logistics decisions are not distorted by the marketing strategy. According to the current direction of development, smaller and smaller quantities of goods are constantly being moved, with ever shorter deadlines. Therefore, companies prefer to use the Just In Time (JIT) system, which results in a gradual reduction in inventory costs, but increases the burden on the environment. In this article, we analyze the interaction between marketing and logistics and the logistics environment required to implement a JIT system. For research we have used the matrix of Quality Function Deployment (QFD) technique to evaluate the needs of the customer with respect to the JIT system, thus clarifying the logistics strategy applicable to the introduction of the specific product.

Open Access: Yes

DOI: 10.14513/actatechjaur.00597