showing 17 related works from this author
Cyclic Dynamic Evaluation of Logistics Services Stakeholders Based on System with OFN Model
2021
The challenge for enterprises and supply chains is to deliver successful logistics services in compliance with their aims. Logistics services are affected by many stakeholders. Recognizing their impact on the undertaken services is important for the planning and execution of a sufficiently rigorous stakeholder management process. The aim of the paper is to present a new approach to the analysis of stakeholders - cyclic dynamic evaluation, which could be used in service management, such as in logistics services. We present a novel fuzzy inference system based on the mathematical apparatus of Ordered Fuzzy Numbers (OFNs). The evaluation of stakeholders consists in assessing key factors as - f…
Assessing the profitability of investment projects using ordered fuzzy numbers
2019
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 appro…
Transportation Services as Specific Logistics Projects for Oversized Cargo in Poland
2016
Market observation demonstrates that the transportation-freight forwarding-logistics sector carries out diverse projects based on clients’ orders. The majority of those orders are unique and project related. Recently, the project approach to logistics has gained significance. Logistics project management is a relatively new area of knowledge about logistics and supply chains. The paper presents the essence and characteristics of transportation services as a specific logistics project. The authors characterize the transportation-freight forwarding-logistics sector, with particular focus on the sector of oversized cargo transportation. The demand for such services depends on the industry, ene…
Fuzzy logic-decision-making system dedicated to evaluation of logistics project effectiveness
2016
Background: Project effectiveness is synonymous with project success. It is measured or assessed in terms of the degree to which project objectives are achieved. This paper presents an approach to evaluating the effectiveness of logistics projects. The starting point is the analysis of the current state of knowledge in the area of assessing project effectiveness, including logistics projects. The purpose of the study was to identify the critical factors determining the success of logistics projects and develop a model of logistics project effectiveness. Methods: The paper is based on the available recent scientific-theoretical research and publications and on practical studies in 25 enterpr…
BUDOWANIE KONKURENCYJNOŚCI ORAZ ROZWÓJ RELACJI FIRM SEKTORA MŚP Z OTOCZENIEM SPOŁECZNO-GOSPODARCZYM
2014
Wprowadzenie do przedsiębiorstwa koncepcji społecznej odpowiedzialności biznesu (CSR, Corporate Social Responsibility) jest szczególnie istotne w wypadku firm należących do sektora małych i średnich przedsiębiorstw (sektor MŚP). W sektorze MŚP w ostatnim cza-sie nastąpiła istotna zmiana sposobu prowadzenia biznesu. W systemie produkcyjnym wyróż-nia się coraz więcej zadań o charakterze unikatowym, tak zwanych zleceń typu projekt. Sek-tor MŚP realizujący tego typu zlecenia jest szczególnie narażony na utratę konkurencyjności, gdyż zarządzanie projektami polega na zastosowaniu dużej wiedzy, doświadczeń, narzędzi, metod oraz technik w działaniach planistycznych w celu osiągnięcia lub przewyższe…
Wpływ koncepcji logistyki na efektywność zarządzania projektami logistycznymi
2020
Przedsiębiorstwa stale poszukują sposobów tworzenia przewagi konkurencyjnej. W procesie budowania tej przewagi ważną rolę odgrywa koncepcja logistyki. Logistyka jako koncepcja zarządzania przepływami, kształtująca modele biznesu, strategie i programy operacyjne, wykorzystuje szereg instrumentów, w tym projekty logistyczne. W zarządzaniu projektami logistycznymi istotne znaczenie ma efektywność tego zarządzania, związana z przepływami materiałów, towarów i informacji w tzw. cyklu życia projektu. Celem artykułu jest identyfikacja przejawów oddziaływania koncepcji logistyki na efektywność zarządzania projektami logistycznymi. Artykuł ma charakter koncepcyjny. W pierwszej części przybliżono ist…
Stochastic Scheduling of Production Orders Under Uncertainty
2017
This paper attempts to solve the problem of searching minimum production order completion time variants by means of stochastic logical structures with all cost curve descent points and corresponding minimum-cost schedules. The analysis presented in this paper considers scheduling of unique and small batch production, predominantly to order, which accounts for changing requirements of the customer, the complexity and long production process makespan including its technical preparation. Scheduling of production order was performed by means of GAN networks and employed the concept of soft relations. The cost/time relation analysis is based on two-node network models using the cost curve. A new…
Ordered fuzzy rules generation based on incremental dataset
2021
This paper proposes a novel approach for building transparent knowledge-based systems by generating interpretable fuzzy rules that allow for present dependences between quantitative variables by accounting for uncertainty and the dynamics of their values. In the approach, IF-THEN rules are used to show the conditional relationship between the ordered fuzzy numbers, which contain additional information about the tendencies of variables' value changes. This paper elaborates an approach of mining ordered fuzzy rules from numerical data included in an incremental database. This approach develops the ability to record uncertainty and its change in the context of rapidly changing data. In additio…
LOGISTICS PROJECT PLANNING UNDER CONDITIONS OF RISK AND UNCERTAINTY
2017
The paper discusses highly important issues related to the practice of logistics project planning under conditions of certainty, risk, and uncertainty. This process requires the use of a variety of planning information (complete or incomplete, express or implied) as well as the generation of new knowledge. The decision-making process takes place in a deterministic or an nondeterministic situation; the former involves complete information (i.e., certainty) and the latter incomplete information (i.e., risk and uncertainty). Becoming acquainted with the discussed issues provides valuable practical knowledge that may be helpful in making important decisions when formulating concepts and models …
Logistyka a zarządzanie cyklem kapitału pracującego – rozwiązania stosowane w skali przedsiębiorstwa (Logistics vs. working capital cycle management …
2016
Logistyka, jako koncepcja zarządzania strukturą przepływów towarów i związanych z nimi informacji w przedsiębiorstwie i w łańcuchu dostaw, może w istotny sposób wspomóc optymalizację struktury i poziomu kapitału pracującego. Jego obrazem jest wskaźnik cyklu konwersji gotówki V.D. Richardsa i E.J. Laughlina, a spośród jego składowych logistyka bezpośrednio wpływa na długość cyklu zapasów (F2F), obok cyklu należności (02C) oraz zobowiązań (P2P). Głównymi instrumentami stosowanymi w przedsiębiorstwie w celu skrócenia cyklu F2F są Lean Manufacturing i Just in Time, zorientowane na ujawnianie i redukcję marnotrawstwa w przedsiębiorstwie, czego skutkiem jest zmniejszenie poziomu zapasów. W efekci…
Impact COVID-19 pandemic on implementation industry 4.0 in enterprises and supply chains
2021
Purpose: The aim of this study is to discuss the impact COVID-19 pandemic on implementation 4.0 technologies in enterprises and supply chains. Design/methodology/approach: The study performs review of literature to identify key aspects of Industry 4.0, the COVID-19 pandemic in the economy. Findings: The paper explained the changes in the functioning of enterprises and supply chains and their transformation towards Industry 4.0. The authors defined the impact of the COVID-19 pandemic in the context of applying technology trends of the Industry 4.0 by enterprises and supply chains. We claim that in the enterprises and supply chains will be the need to invest in new technologies for the long t…
2016
Probabilistic Fuzzy Approach to Evaluation of Logistics Service Effectiveness
2014
Received: 9 September 2014 Abstract Accepted: 11 October 2014 Logistics service providers offer a whole or partial logistics business service over a certain time period. Between such companies, the effectiveness of specific logistics services can vary. Logistics service providers seek the effective performance of logistics service. The purpose of this paper is to present a new approach for the evaluation of logistics service effectiveness, along with a specific computer system implementing the proposed approach – a sophisticated inference system, an extension of the Mamdani probabilistic fuzzy system. The paper presents specific knowledge concerning the relationships between effectiveness i…
OFN Capital Budgeting Under Uncertainty and Risk
2017
The aim of this chapter is to propose a new approach to incorporating uncertainty into capital budgeting. The chapter presents methods that can be used by an investor when the decision maker wants to be able to make an investment decision where there are alternative investment projects. This kind of problem is undertaken under the conditions of uncertainty and risk using Ordered Fuzzy Numbers (OFN). The starting point is the concept of Ordered Fuzzy Numbers. The chapter illustrates the implementation of the proposed approach with an example where two alternative investment projects are analyzed. The authors present the capital budgeting problem using a numerical example. The described metho…
SZACOWANIE CZASU REALIZACJI PROJEKTU PRZY NIEPRECYZYJNYCH ZMIENNYCH
2017
Praca przedstawia istotę i znaczenie problemu szacowania czasu realizacji projektów w warunkach niepewności i ryzyka z zastosowaniem skierowanych liczb rozmytych. W pracy przedstawiono autorskie podejście do szacowania czasu realizacji projektów bazujące na rozmytym modelu niepewności czasów czynności projektowych ze skierowaniem. Zaprezentowana rozszerzona metoda ścieżki krytycznej jest nowym podejściem, które do tej pory nie było prezentowane w takim ujęciu w literaturze tematu. W celu weryfikacji poprawności prezentowanego podejścia przedstawiono przykład obliczeniowy ilustrujący dany problem. Przedstawiono zalety proponowanego podejścia. Podejście to może znaleźć zastosowania w praktyce…
Knowledge Management in the Project Life Cycle - Initial Research on Polish Smes
2014
Abstract Contemporary organizations run their activities in an environment, which might be defined as fully uncertain and turbulent. Due to variations that occur in the surrounding environment, an increased attention of management practitioners and theoreticians is paid to new management concepts frequently in an integrated version. The authors express a deep belief that consolidation of approaches to project management and knowledge management constitutes a response to challenge for modern organizations. Research into the issue was based on an attempt to determine significance of the knowledge management issue in a life of projects performed by Polish small and medium-sized enterprises (SM…
Recognizing Early warning Signs in Transportation Services
2018
The transport services can vary in complexity, and can be carried out in short or long supply chains. Market observations indicate that logistics services including transport service become increasingly sophisticated, by far exceeding their traditional perception. They begin to resemble projects characterized by singularity, uniqueness, temporariness, limited budget, and, occasionally, innovativeness. Therefore, they are often treated as a specific type of projects, called logistics projects. The aim of the paper is to present the essence and characteristics of transportation services as a specific logistics project. Author characterizes the transportation service, with particular focus on …