Picture fuzzy MABAC method based on prospect theory for multiple attribute group decision making and its application to suppliers selection

In the garment manufacturing industry, purchasing management is an important link. The materials of making clothes often need high cost. In addition, customers put forward a request in the quality of clothes. Thus, choosing an optimal supplier is an essential part of job. Reaching cooperation with an optimal supplier not only can help garment manufacturer improve the quality of clothes but also is benefit to reduce the cost of producing. Most importantly, it can improve the competitiveness of manufacture enterprises. So, it is important for managers to find an optimal supplier and make a cooperation with it. In this paper, we analysis an issue about choosing an optimal supplier during four different suppliers. With analyzing this problem, we can introduce an extended method under picture fuzzy environment to evaluate and choose an optimal supplier. In this article, we describe some basic knowledges about picture fuzzy sets (PFSs) and picture fuzzy numbers (PFNs). Then, we introduce the extension of MABAC method which is on the basis of prospect theory (PT) with picture fuzzy numbers (PF-PT-MABAC) and utilize the PF-PT-MABAC model to evaluate different suppliers to choose an optimal supplier. Finally, we compare the result of PF-PT-MABAC with the result of traditional MABAC, PFWG operators and traditional TODIM method to test the efficiency of PF-PT-MABAC model.

Functions and roles in operations management

This chapter covers the main functions and roles of operational management. In particular, problems related to the organization of the production process, including its continuous improvement, were raised. In addition, the role of resource management in an enterprise was discussed along with tools for optimizing resource allocation. The issues related to purchasing management, its changing importance over the last years, tasks and methods of organization were also described. The concept of production capacity was explained, as well as the methods of analysing production processes aimed at maximizing efficiency. The importance of inter-organizational cooperation, both in static and dynamic terms, was also outlined, with particular emphasis on barriers and benefits.

Hotel Guests’ Perceptions of Environmentally Friendly Practices in Jordan

Tourism still generates negative effects on the environment that consequently objected the green practices in hotels; therefore, this study comes to measure the perception of international guests towards green practices in the Jordanian hotels. This study considers the first attempt that linked the tourists' perceptions toward green practices in hotels and their willingness to stay in eco-label hotels in Jordan. The study relied on the quantitative approach to measure the level of those practices as 270 questionnaires were collected during the period from March to September 2019. The questionnaire included questions on 7 eco-label criteria (Green hotel certification, Energy, Water, Waste and Purchasing Management, Community support and Customer education) comprising all areas of hotel operations, and 3 statements to measure hotel guests’ guests’ willingness to stay in eco-label hotel. The statistical analysis was performed using SPSS program version 21. The study found a positive but moderate correlation between tourists' perceptions towards environmental practices and their stay in eco-hotels. In addition, the various dimensions of environmental practices were positively related to tourists staying in an environmentally friendly hotel. This is one of the first studies that linked tourists' perceptions towards green practices in the hotels and their willingness to stay in eco-label hotel.

SPECIFICS OF PURCHASING MANAGEMENT IN CONDITIONS OF TOTAL DIGITALIZATION

The purpose of the article is to determine the specifics of purchasing management in conditions of total digitalization. Based on the synthesis of concepts and research trends, activities in the management of pro-curement of material resources are identified, which contribute to the effective activities of business entities, digitalization priorities and effects in the procurement process. The article summarizes the advantages, ad-vantages and disadvantages of centralized, decentralized and mixed models of the organization of the pro-curement management system, taking into account the timing, identity of contracts, delegation of procurement functions, accuracy of order satisfaction, reduction of risks of bureaucratization and corruption. Vector zones of digital transformation of conditions and scope of procurement, intensity of climate change in the company, integration of intellectual, technological and efficient procurement process for the business as a whole are defined. It is emphasized that the system of digital procurement through machine training significantly trans-forms the procurement process, contributing to the prompt selection of the right type of competition, the iden-tification, definition and recognition of proven (law-abiding), customer-oriented suppliers, the identification of criteria for the optimal market price and the formation of conditions for effective purchase.

Multivariable Supplier Segmentation in Sustainable Supply Chain Management

Pressure from stakeholders for sustainable development is forcing top management to reconsider its supply chain management. This form of sustainability must consider the risks, insecurities, and lack of proximity caused by any event on the global economy. Organizations must identify and manage the risks of every link in the chain, while pursuing sustainable development. Corporate social responsibility (CSR) and sustainable development must be the result of a deliberate and coordinated response by the entire organization. A suitable segmentation of suppliers allows development strategies to be prioritized. This article presents the steps that should be followed in supply chain management, the identification of risks, and the new leadership of purchasing management to develop a sustainable supply chain. To this end, some of the key industrial actions reported in the literature are outlined, and two case studies are presented to identify the steps for the segmentation and dynamic development of suppliers. This article provides reflections on the responsibilities of senior management in the new era of sustainable development and presents guidance on how to coordinate sustainable development in the supply chain.

GESTÃO DE COMPRAS EM ORGANIZAÇÕES PÚBLICAS: um estudo de caso a partir das aquisições da UFT entre os anos de 2012 a 2016

Business organizations are reorienting their practices to optimize their operating flows for more efficient management. This scenario of administrative rationalization is also impacting public organizations. In this perspective, the search for more effective management is leading public organizations to seek new answers to address their budgetary limitations. This work aims to study the purchasing management of the Federal University of Tocantins, between 2012 and 2016. This research is a qualitative case study and was conducted with the analysis of institutional documents and bibliographic research. Of the total volume contracted from 2012 to 2016, 72.05% of the total volume was destined to contract services. Hiring through direct contracting represents 73.85% of the number of processes, which may signal weakness in the control related to the fractioning of acquisitions. It was observed that UFT uses the electronic auction as its predominant form for its acquisitions, of the total financial volume contracted 73.91% was through this modality. Even with the fiscal constraint scenario, there was an increase in the global value of acquisitions from 2014. The results showed that the university still lacks robust improvements in the monitoring of procurement processes, especially with regard to the agility of processing orders. demands, which may be explained by the University’s multi-camp reality that makes coordinated actions between administrative units difficult.