eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
The effects of demand planning on the negative consequences of operational risk in supply chains
Artur Świerczek
1
University of Economics in Katowice, Katowice, Poland
Background: Although extant studies have highlighted the importance of specific demand planning practices in risk mitigation, there is a scarcity of research that shows the simultaneous effects of demand planning practices on the disruptions induced by operational risks in supply chains. In order to reduce this gap, this paper aims to explore the impact of the demand planning process on operational risk, and thereby reveal if operational risk factors and their negative consequences may be mitigated through the application of specific demand planning practices in supply chains.
Methods: The study involves two stages of multivariate statistical analysis. In stage one, independent and dependent variables are reduced through factor analysis in order to highlight the main, underlying, multi-item factors. In the second stage of the study, a multiple regression analysis is conducted to compare the general contribution to variance in operational risk accounted for by demand planning practices and their combinations. The conducted analysis provided regression models for particular operational risks.
Results: The study reveals that all activities in the demand planning process contribute more or less to lower operational risk in the examined supply chains. In particular, there are strong relationships between demand planning practices and both control and demand risks. On the other hand, the lesser effects of demand planning may be observed in process and supply risks.
Conclusions: The study shows that different managerial instruments, which are not inherently dedicated to risk management, when appropriately applied, may have an indirect impact on the mitigation of supply chain risk. In particular, the concept of demand planning might be very helpful for managers when dealing with demand and control risks.
http://www.logforum.net/vol15/issue3/no1/15_3_1_19.pdf
planning process
demand
risk
supply chain
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
The role of environmental cooperation and collaboration in supplier relationship management
Piotr Cezary Sosnowski
1
University of Lodz, Łódź, Poland
Background: This article aims to determine the role of environmental cooperation and collaboration in supplier relationship management. The following concepts are introduced: supplier relationship management, environmental cooperation and environmental collaboration. Supplier relationship management aims at building bonds with suppli
http://www.logforum.net/vol15/issue3/no2/15_3_2_19.pdf
environmental cooperation
environmental collaboration
supplier relationship management
building relationships with suppliers
buyer-supplier relationships
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Concept for identifying problems in supply chains in omni-channel systems
Sebastian Wieczerniak
1
Jarosław Milczarek
1
Poznan School of Logistics, Poznań, Poland
Background: In a rapidly changing competitive environment and increasing customer expectations, an efficient supply chain is a very important success factor. What should be avoided and what should be considered during planning and supply chain management? Is it possible to apply the same solutions to each business model (B2B/ B2C)? The following article presents the perspective of manufacturing companies. In the current situation there is less and less space for companies operating according to only one model. Each company is considering strategies: low profit in B2B models, which due to greater predictability of demand gives lower risk of production planning and omni-channel in B2C models, which by definition are more profitable, but are associated with a higher risk of demand change. The article presents problems and challenges during supply chain management in manufacturing companies that use both business models in the era of e-commerce market.
Methods: Based on the available literature, the problems of supply chain management in B2B and B2C relations are presented. The frequency of their occurrence was surveyed and the level of risk of negative impact on the company and its environment was presented.
Results: The survey identified the challenges and problems that companies face when managing their supply chains, and those that pose the highest and lowest risks.
Conclusions: This article presents the concept of identification of problems and challenges faced by manufacturing companies and models of actions to be applied in order to minimize their effects. The article is two-dimensional, showing a perspective for simple supply chains (B2B) and omni-channel chains (B2C).
http://www.logforum.net/vol15/issue3/no3/15_3_3_19.pdf
SCM problems
SCM challenges
SCM production companies
B2B
B2C
DRP
Supply chain tailored to the needs of omni-channel
e-commerce
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
The main areas of methodological reflection in the supply chains research
Marek Ciesielski
1
Sylwia Konecka
1
Poznań University of Economics and Business, Poznań, Poland
Background: The most important contemporary methodological problems in the study of supply chains include creating and verifying hypotheses and theories as well as selecting appropriate research schemes. An acceptance of the different ways to explain problems (induction, deduction or abduction) is key. It should be remembered that interesting and useful results can be achieved only with well-formulated questions and research problems. All of these issues relate to the need to strengthen methodological rigor within the research into supply chains.
Methods: The primary method employed in this article is critical analysis. This article focuses on the most important issues related to the construction of a theory and its verification, as well as the issue of the pattern of research and the cognitive scheme. In addition, the issue of the correctness of definitions has been developed, as these are often wrongly formulated and do not fulfil their role.
Results: The main purpose of this article is to indicate that supply chain research requires a change in the general model of scientific practice, assigning a higher rank to replication research and increasing the role of scientific criticism. Potential drivers of supply chain research are all types of reasoning: deduction (reasoning, checking), reduction and its special case induction (translation, command), and the systematization of knowledge. The knowledge gained from this research is so extensive and varied that its further development is possible through refutation, i.e. thesis making, defence and falsification. The aim of this article is also the systematization and analysis of theories and methodological assumptions in the area of supply chain management.
Conclusions: The analysis points to a need to structure the definitions of supply. What needs to be established is a set of basic theories useful in the study of supply chains and the assessment of the assertions formulated with regards to hypotheses. The improvement of methodological assumptions, as well as the search for methodological elements useful in this study, need to be continuously ensured. The scope of the theories used in the research should be broadened, but at the same time, new theories should be examined which also pertain to their usefulness in explaining and creating the concept and practical recommendations. It is suggested that research on supply chains needs to be approached in a slightly broader way than has been done so far in the literature. The methodology is recognized as a system of analysis in a particular area of study or activity. Therefore, the majority of publications retrieved according to this key word refer only to examples of the use of particular methods, tools for researching supply chains, or only some aspects of its functioning. However, methodology can also be understood as a philosophy of science. This approach to supply chain research methodology is an important research gap and a new view on supply chain management.
http://www.logforum.net/vol15/issue3/no4/15_3_4_19.pdf
methodology
theories
reasoning
cognitive scheme
hypothesis
supply chains
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Striving for excellence in AI implementation: AI Maturity Model framework and preliminary research results
Anna Paula Tanajura Ellefsen
1
Joanna Oleśków-Szłapka
2
Grzegorz Pawłowski
3
Adrianna Toboła
4
Telenor, Oslo, Norway
Poznan University of Technology, Poznań, Poland
WSB University in Poznan, Poznań, Poland
Poznań School of Logistics, Poznań, Poland
Background: In hereby article authors try to summarize how AI can be use by companies within production and warehousing. On the basis of previously developed Logistics 4.0 maturity model authors also propose Artificial intelligence maturity levels and on its basis a survey has been conducted in selected Polish and Norwegian companies and actual AI state of development and maturity levels has been recognized. However authors present preliminary stage of research as a multi case study which will be further developed and extended in order to identify branches and areas with a hugest potential to enhance AI utilization.
Furthermore paper presents potential directions of Artificial intelligence implementation as well as tools that can be useful to deal with big data and optimization problems predicted not only for big companies but also SMEs. Authors propose term Artificial Intelligence 4.0 to point out the actual trends in the scope of Industry 4.0 and Logistics 4.0 and revolution with respect to AI. Without doubt AI is a big challenge for manufacturing companies as well as Transport and Logistics Industry and its application should be increased and extended in solving practical problems.
Methods: Methodology applied by authors of hereby paper can be divided on following stages: literature analysis, enlargement of AI maturity model, development of a questionnaire, multi-case studies in Norway and Poland.
Results: The literature search showed a cognitive gap due to fact there is a little of literature dealing with problem of Artificial intelligence maturity models as well as Logistics 4.0 and Artificial Intelligence. Artificial intelligence maturity levels can be combined with Logistics 4.0 maturity models thus relations between actual level of logistics maturity and AI readiness in companies will be recognized. Due to such analysis it will be possible to develop complex roadmap with the organization’s strategic guidelines how to deal with Logistics 4.0 and AI. All the companies investigated in this preliminary study could be classified as AI Novices: Companies that have not taken proactive steps on the AI journey and are at best in assessment mode. Even the bigger companies with more automated solutions cannot visualize the benefits AI can bring.
Conclusions: Authors see potential to apply aforementioned model to investigate AI maturity levels in logistics companies and combine obtained results with previously developed Logistics 4.0 maturity model. Authors propose to introduce term Artificial Intelligence 4.0 to emphasize the importance of artificial intelligence with respect to Logistics 4.0 and Industry 4.0.
http://www.logforum.net/vol15/issue3/no5/15_3_5_19.pdf
Industry 4.0
Logistics 4.0
Artificial intelligence 4.0
Artificial intelligence
maturity levels
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Assessing the profitability of investment projects using ordered fuzzy numbers
Iwona Pisz
1
Anna Chwastyk
2
Iwona Łapuńka
2
Opole University, Opole, Poland
Opole University of Technology, Opole, Poland
Background: This article is motivated by the fact that most approaches to capital budgeting are deterministic. In reality, the capital budgeting problem is accompanied by the uncertainty and risk associated with dealing with imprecise data. Taking this uncertainty into account when performing analyses and calculations not only helps to better measure the profitability of investment projects, but also to expand the applicability of capital budgeting methods under real-life or uncertain conditions. The major contribution of this paper is the development of a novel approach to assessing the profitability of an investment project in the presence of uncertainty.
Methods: We present a novel approach for incorporating uncertainty into how the profitability of investment projects is assessed, which we term Ordered Fuzzy Net Present Value (OFNPV). The proposed method measures the level of investment project effectiveness using a model based on ordered fuzzy numbers (OFNs). In addition, ordered fuzzy numbers are used to describe changes to the investment parameters in the assumed time horizon. This paper illustrates an implementation of the proposed technique using a numerical example of an investment process in the logistics department of a company.
Results: The use of the proposed method based on OFNs allows experts to gauge the real-life accuracy of the considered phenomenon, and to express their assessment of its dynamic changes. This is vital to the problem of profitability assessment in investment projects.
Conclusions: Our approach offers a new perspective on the problem of investment in projects and constitutes an effective tool for assessing the profitability of investment projects. This tool could constitute a valuable source of knowledge for investors involved in decision-making processes.
http://www.logforum.net/vol15/issue3/no6/15_3_6_19.pdf
project
investment project
capital budgeting
NPV
fuzzy number
ordered fuzzy number
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
A comprehensive study of classical heuristic algorithms used in the process of solving Transportation Problem
Krzysztof Szwarc
1
Urszula Boryczka
1
Sebastian Twaróg
2
Jacek Szołtysek
2
University of Silesia in Katowice, Sosnowiec, Poland
University of Economics in Katowice, Katowice, Poland
Background: Transportation Problem (TP) is a special case of integer programming, characterised by indisputable practical significance (in particular in the area of logistics). For this reason, many techniques have been proposed to solve the problem both in optimum and approximate manner. The problem of selecting an effective technique for determining a suboptimal solution for TP was addressed by many researchers, however the implementation of only certain heuristics, 'test bed' applied, as well as non-performance of statistical tests make it impossible to clearly identify the recommended approach to application of heuristics in TP, leaving a research gap which determined the writing of this article. The additional purpose of this paper is to provide a summary of selected approximate methods, taking into consideration the number of iterations necessary to design the optimal solution by means of Modified Distribution (MODI) method and to demonstrate potential correlations between the parameters describing a problem instance and the efficiency of the methods.
Methods: This paper presents a comparative study of four classic techniques (NWC, LCM, VAM and RAM). The tests were performed on three sets of 2,500 pseudo-randomly generated tasks and the observations were also checked by means of the Wilcoxon Signed-Rank Test and Pearson correlation coefficient.
Results: The results confirms that VAM is characterised by a significant quality of the determined results, whereas NWC develops solutions of low efficiency. However, contrary to the observations made for small TP instances, RAM was characterised by a higher error value than LCM for huge set, demonstrating the impossibility to generalise results obtained for small problems (presented e.g. in literature), in order to determine their efficiency for higher instances.
Conclusions: It is recommended to apply VAM both for the determination of initial solution in MODI method and for performing allocation of resources, using only heuristics. However, taking into consideration the utilitarian approach and possible occurrence of the necessity to solve TP instances without using the appropriate software, it is recommended to use LCM for solving large instances of TP. The presence of strong correlation between the number of nodes describing the TP instance and the number of iterations necessary to determine the optimal solution by MODI method has been identified.
http://www.logforum.net/vol15/issue3/no7/15_3_7_19.pdf
Transportation Problem
Best Initial Feasible Solution
MODI
VAM
RAM
LCM
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Mobile technologies in logistic customer service as a tool for winning customers’ satisfaction
Jagoda Ochocka
1
University of Lodz, Łódź, Poland
Background: The extremely demanding and dynamic situation on the 21st-century market along with market trends such as globalization, product unification or the development of e-commerce and m-commerce make it harder for businesses to compete and lead to greater deployment of technologies. As customers’ expectations rise to an unbelievable level, all firms are searching for new means to succeed. Therefore, the aim of this paper is to present the importance of mobile technologies in logistics customer service and boosting customers’ satisfaction in the form of a two-perspective judgement concerning both the supplier and the end client.
Methods: In order to acquire the dual perspective, the research includes two interviews with different companies from one supply chain and a survey. Both interviews were structured so as to compare each business’s comprehension of the importance of mobile technologies in the logistics supply chain. The survey was conducted among randomly chosen customers aged 20-30, who mostly use mobile technologies while shopping (gived their share in the number of m-commerce customers). This approach made the survey results realistic.
Results: The results show an undoubtable synergy effect of the conscious use of mobile technologies in each linkin the supply chain. Moreover, the study confirms the growing popularity of this solution, as well as its contribution to constantly improving logistics customer service in terms of time, reliability, communication and comfort.
Conclusions: Based on the study, the high level of general customers’ satisfaction of mobile technologies is incontestable proof of their overall benefits. Therefore, mobile technologies can be the key to gaining or keeping customers in the 21st-century marketplace.
http://www.logforum.net/vol15/issue3/no8/15_3_8_19.pdf
Mobile technologies
logistics customer service
satisfaction
omnichanneling
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Remanufacturing sustainability indicators: A study on diesel particulate filter
Kanchana Sethanan
1
Rapeepan Pitakaso
2
Monika Kosacka-Olejnik
3
Karolina Werner-Lewandowska
3
Aneta Wasyniak
4
Khonkean University, Khon Kaen, Thailand
Ubonratchathani University, Ubon Ratchathani, Thailand
Poznan University of Technology, Poznan, Poland
Ekologiczne Auto PL, P.P.H.U. Matuszewska Marzena, Krzywiń, Poland
Background: Remanufacturing transforms end-of-life products into new products, which brings cost savings for the usage of energy and materials and environmental protection. Sustainability is a significant issue for remanufacturing SMEs trying to stay competitive in the marketplace, while remanufacturing seems to be a promising strategy to explore for increasing the environmental and economic burdens on society. Despite sustainability being a known concept, it very often becomes a purely strategic goal which is not defined at the operational level of business. The major objective of this paper is to determine a set of sustainability indicators for an evaluation of the remanufacturing process, integrating economic, social and environmental aspects of business.
Methods: The literature review method was used to verify current knowledge on remanufacturing sustainability indicators, while the observation method was used to determine the specifics of the remanufacturing process. The brainstorming method aimed to verify the usefulness of existing indicator frameworks and define a set of indicators developed for the assessment of remanufacturing sustainability.
Results: In the presented paper, a set of 11 remanufacturing sustainability indicators was prepared, which were tested on a company in Poland that was remanufacturing a diesel particulate filter.
Conclusions: Although the proposed set of remanufacturing sustainability indicators was defined for a specific company, it may be used as a guideline for comprehensive indicator framework development, regardless of the product type or the size of the company. The main challenge in introducing sustainability at the operational level of remanufacturing in business is enabling multilevel assessments while considering particular sustainability aspects and the company as a whole. This outlines directions for future research.
http://www.logforum.net/vol15/issue3/no9/15_3_9_19.pdf
remanufacturing
sustainability; indicators
measurement
diesel particulate filter
eng
Poznan School of Logistics
Logforum
1734459X
2019-09-30
15
3
article
Assessing the effect of higher education service quality on job satisfaction among lecturers in premier polytechnics using HEdPERF model
Sulaiman Mohammed Khalid
1
Khairul Anuar Mohd. Ali
1
Zafir Khan Mohamed Makhbul
1
University Kebangsaan Malaysia, Selangor, Malaysia
Background: Dynamic change has compelled Malaysian Polytechnics to embrace service quality to achieve competitive advantage and sustainability for nation economic development. Current literature in higher education service quality shows that appropriate implementation of HEdPERF in the organization operation will improve the service quality and job satisfaction that subsequently will enhance the organizational performance. Althoug
http://www.logforum.net/vol15/issue3/no10/15_3_10_19.pdf
service quality
job satisfaction
Higher Education Performance (HEdPERF)
polytechnics