dematel

Nowadays, the use of internet infrastructure to provide better services by transport companies is a topic that has been generally welcomed by the society. This research, with the main objective of rating the internet taxi companies in Rasht city, tries to investigate and evaluate the performance of these companies in terms of satisfying and attracting customers. In this regard, first by studying various sources, the evaluation and rating criteria of this type of service companies were identified. Then, using the opinions of experts, the effective criteria were identified and categorized. In the next step, the final criteria were determined using pairwise comparison questionnaires. The internal relationships of the criteria were determined by DEMATEL method and weighted through the network analysis (ANP) method. Finally, the of the companies was ranked through the steps of the ARAS method. According to the results, availability and travel quality criteria are more important than other criteria. Also, among the three active internet taxi companies in Rasht: Snap, TapC and Maxim, won the first to third ranks, respectively.

With the growing trend of electronic payments, the use of blockchain technology has been introduced as one of the solutions for safe money transfer. Some of these obstacles include technical, technological, organizational, financial and security problems. To identify and prioritize these obstacles and solve them, multi-criteria decision-making methods can be useful.In this research, in order to identify and rank the factors of obstacles related to electronic payments based on blockchain technology, the Delphi method has been used. This method includes reading previous articles and collecting the opinions of 35 specialists and experts in this field. To analyze the relationship between the factors and identify their causal relationships, the Dimtel method was used and finally, to prioritize the factors, the process of network analysis was used.Out of 13 indicators, 11 indicators were evaluated in the final analysis. The privacy compliance index has the greatest impact on other indicators. On the other hand, indicators of non-commitment and the desire of senior managers to improve and make fundamental changes are also more influential than other indicators.

The management and performance evaluation system as one of the management processes has a prominent role in helping to achieve the goals and missions of the organization. The purpose of this article is to present a method to evaluate the performance of the organization's task units. This approach, based on a scientific and systematic method, explicitly considers the existence of uncertainty and ambiguity in the nature of organizational activities.

In this paper, a MADM hybrid approach is used. First, the performance indicators have been determined by the literature review and consulting experts, and then the importance and weight of each of the performance indicators has been calculated using the intuitionistic Fuzzy DEMATEL and finally, the performance of organization's units has been evaluated using the ELECTRE intuitionistic Fuzzy method. In order to apply this method, the performance evaluation of the organization of industry, mining and trade of Tehran province has been done with the proposed method.

This study shows the effectiveness of the hybrid intuitionistic fuzzy DEMATEL-ELECTRE approach in performance evaluation the organizational units. This method correctly considers the uncertainty in the performance evaluation indicators by using the intuitionistic fuzzy approach and leads to a correct and reliable performance evaluation. The results showed that among performance indicators, organizational improvement and transformation, transparency and productivity improvement have the most weight and importance in performance evaluation of organizational units.

Originality/Value:

 For the first time, this research has used the hybrid intuitionistic fuzzy DEMATEL-ELECTRE approach to performance evaluation of organizational units. Using the intuitionistic fuzzy approach provides a unique perspective on uncertainty in performance evaluation and increases the reliability of performance evaluation and ranking. The application of this method in a government service organization provides a methodological tool for performance evaluation or rating of organizational units or work teams in different or similar organizations and fields.

Implementation and management of all projects are always accompanied by ambiguities and the unknown that could have positive or negative effects on the results. Therefore, the assessment of project risks is of particular importance. In this study, the possible risks in industrial methods of building construction in the technical, executive, economic and support, political, cultural, social and environmental aspects were identified and categorized. In order to identify the main risks, the Delphi method based on experts and elites’ comments were used. Out of 48 identified risks, 18 risks were selected which were classified into five scopes of economic, executive, technical and cultural, social and political support. Then, using the DEMATEL method and the two criteria of intensity of interaction and impact relation map, the effect of each of these factors on the objectives of the probability of occurrence and finally the importance of each risk were determined. Ranking these factors showed that executive, economic and support scopes were the riskiest scopes of industrial construction methods. In addition, the results of the research showed that based on both criteria, inappropriate and inefficient management were the greatest risk factors followed by the risks of false selection of construction techniques, lack of knowledge and technical skills of executives, existence of conflict between executives and stakeholders, budget deficits, unseen delays in the project and price fluctuations and inflation.

Evaluation of the supply chain encompasses various functions aimed at performance improvement, efficient resource management, identification of strategies to address current challenges and weaknesses in the existing supply chain, and ultimately, sustainable development of the company. Aimed to identify criteria and sub-criteria for evaluating the supply chain using dimensions of the operational supply chain model within this company. The operational supply chain model was adopted as a reference, and sub-criteria were extracted based on the dimensions of reliability, responsiveness, quality, cost, and asset management. Using the DEMATEL method, causal relationships among 24 sub-criteria were defined in a fuzzy Intuitionistic environment, and then weighted using the Analytic Network Process (ANP) with three types of data: crisp, fuzzy, and fuzzy cognitive. Weighting with all three methods was compared, showing that fuzzy Intuitionistic data yielded significantly more accurate results. Finally, decision-making units were ranked, with Decision Unit 1 achieving the highest rank and Decision Unit Eight the lowest.

Referring to the IRAN’s sixth development plan, reducing vulnerability and promoting national stability in sensitive petrochemical industry is mandatory and technology has a vital role in providing passive defense requirements. Also due to globalization, technological progress is key driver of competitive advantages, the purpose of the research is identifying and prioritizing factors which affect the evaluation of PPC’s Technology based on the technological capabilities in the Atlas model, including techno-ware, human-ware, info-ware, orga-ware with capability and attractiveness criteria. Intelligent defense and improvement of resilience and passive defense are provided with continuous production, sales and exchange incomes through identifying and compensating the technology gap.

The purpose of the research is practical and implementation’s type is descriptive-survey.The data gathering method are questionnaire,interview and library, the statistical population are 24 people of experts. the 92 effective factors of Atlas model elements were collected, then Delphi questionnaire measure their importance, and relationship,effectiveness and ranking were done through the combined DEMATEL and ANP.

The human-ware and info-ware are driving forces with 30 and 24 weights-percent, and technology-oriented experts,creating motivation through leadership the most effective factors with 5.85 and 5.63 weights-percent.

The commitment of top management which is evident in maintaining technology-oriented experts, developing collaborative management, allocating resources, developing training and creating motivation, has more than 50 weight percent in using technology to achieve organization's competitive advantages and promote resiliency and passive defense

Among the disasters, epidemics have destructive effects on human life and infrastructures and increase the demand for response to humanitarian aid. Governments and organizations are obliged to enter the field through humanitarian supply chains to provide further aid for these disorders. Resilience of the humanitarian supply chain can be a suitable solution to solve these problems. Therefore, the aim of this study was to find a paradigmatic model of the resilience of the humanitarian supply chain in epidemic diseases and to investigate the dimensions and relationships of this model.

The research method of this research is a combination of qualitative and quantitative. Based on this, using the data theory, the paradigm model of the resilience of the humanitarian supply chain was created in the organizations that provide humanitarian services. Then these relationships between the main categories were determined by the dematel method.

According to the results, the "strategies" category had more interaction (both in terms of effectiveness and in terms of effectiveness) than other categories. Also, the "intervening elements" category had the lowest dependence compared to the other categories according to the number of relations coming out of it, but the other categories have a strong dependence on it. Also, the "strategies" category has the most dependence on the other categories due to the number of relationships entering it, but the other categories have little dependence on it.

Due to the scarcity of fresh water resources in Iran like many other parts of the world, the demand for providing drinking water resources using desalination processes is increasing. The desalination processes though require a significant amount of energy and financial resources. Therefore, the economic study of water desalination processes is very important in order to choose the optimal desalination method. Identifying and evaluating the risks associated with each process is a great help for the economic evaluation of such projects.In this research, with the help of Delphi method, significant risks in the construction and operation of humidifiers-dehumidifiers have been identified among 35 risks. Then, using the DEMATEL method, which is one of the decision-making methods based on pairwise comparisons, risks were prioritized based on the degree of impact and effectiveness. A total of 13 risks have been identified in the five fields of technical, economic and support, executive, political, and environmental. It can be argued that the factors of choosing inappropriate manufacturing technology, price changes and inflation, energy supply, improper design of wastewater and waste disposal systems and large-scale technology maturity are the main risk factors in this type of desalination plants. The results showed that locating this group of desalination plants requires careful study of the temperature difference and the intensity of cold and hot conditions. It can also be concluded that to apply this desalinization process in a large and industrial scale requires further studies.

Blowout is an uncontrolled flow of reservoir fluids into wellbore after the Well Barriers (WBs) have failed. It can lead to catastrophic consequences such as an explosion, human casualties, loss of equipment, and environmental pollution. There is an urgent need to analyze interdependencies among WB and improving their safety for the prevention of blowouts. Policymaking, operational, personal, and mechanical factors have been identified and described as WB performance indicators using a bow-tie approach in previous research. In this study, the DEMATEL- based ANP (DANP) method is employed to determine the interdependency and the relative importance of these factors, and to determine the appropriate strategy for the risk mitigation of a blowout.The results show that, “policymaking” is the most important factor because it has the highest rate of the influence (R+D=0.965) and high interrelationship with other factors. Furthermore, the mechanical factor with the highest value of causality (R-D=0.268) mostly affects other factors and operational factor with the lowest value of causality (R-D=-0.424) is influenced by other factors. Based on the results of ANP method, “operational factors” is the first priority among the main factors, and “hydrostatic head”, “well integrity”, “well monitoring”, “emergency management” and “decreased risk” sub-factors are respectively the first to fifth priorities were according to their weight. Considering the greater interaction of the policymaking factor with other factors, If decision makers consider the mechanical factor as " affective factor" and a result its synergistic effect on the operational as "effective factor" can be a significant success in improving the performance of WBs.

In this study Data envelopment analysis is used for the assessment of enterprise resources planning systems of 18 manufacturing companies, to determine whether the defined goals for ERP systems have been able to affect the performance after the implementation of the system. Considering the identification of effective factors in implementing ERP systems and using the previous researches, the performance evaluation criteria of this system were identified. Then, using experts’ views the most important input indicators were ranked by fuzzy DEMATEL and output indicators by ANP. In this ranking, time spent on implementation, the implementation infrastructure, training and user support were identified as top input indicators, and three indicators of productivity increase, proper resource management and user satisfaction were selected as top output indicators. Using selected indicators, the performance of ERP systems of selected companies was evaluated. The results of this research will be useful in identifying the strengths and weaknesses of companies compared to top ones and making their ERP system even better.

Many organizational or even day-to-day interactions of individuals are shaped by their decisions, and these decisions sometimes have implications for different stakeholders. In this regard, it is worthwhile to study and analyze the factors affecting ethical decision making. This study aimed to investigate the factors affecting ethical decision making. After identifying and extracting the factors affecting ethical decision making from the literature, the variables were screened by compiling a Delphi-fuzzy questionnaire and the cooperation of eight experts familiar with the field of management and ethics. After performing the necessary repetitions and the saturation limit of the answers, the indicators were finally confirmed. Then, the indicators were analyzed using fuzzy DEMATEL method. Finally, the technique presented the relative importance and relationships between experts by systematically analyzing the opinions of experts. The analysis showed that the variables of "senior managers 'influence", "co-workers' influence" and "emotions / mood" are of great importance among the variables and affect other variables. In contrast, the "spirituality", "business competition" and "decision style" of the decision-maker are less important than other factors. In general, several factors influence the making of a moral decision, but the results indicate that in the individual dimension. The personality, fortifications and values of the decision-maker and in the situational dimension. Reference groups play an important role in making an ethical decision and can guide it. Therefore, more reflection is needed to inform the person who is in the position of decision, more control and more careful monitoring of the outcome of the decision.

One of the main goals of any construction is to provide a project within the budget range. However, most of the construction projects cost more than predicted. Cost overrun is a worldwide problem, but it has become a major challenge in developing countries. The purpose of this research is to identify the most important structures related to cost overrun in construction projects in Iran using the hybrid method of Systems Dynamic and DEMATEL. For this purpose, 55 factors affecting cost overruns in construction projects were identified through a literature review and classified into 6 groups. From the 55 identified factors, more important factors were selected based on the frequency and experts' opinion. Then, using the System Dynamic method, the Causal Loop Diagram of factors affecting the cost overrun and the interrelations of these factors are built in the project work process in the form of four subsystems including labors, materials, equipment, and overhead. The resulting causal loop diagram obtained from SD were used subsequently for identifying the most significant factors influencing and influenced by cost overrun through the Decision Making Trial and Evaluation Laboratory (DEMATEL) method. The ranking of the factors was determined by the amount of affecting degrees. Factors and subsystems were also divided into cause and effect groups. The results of this study indicate that lack of cash flow, lack of technical and specialized personnel, and the reworks are the most affecting factors on the cost overrun in construction projects. Also, the duration of the project, cash flow, and efficiency of the employees, respectively, are the most affected factors by the cost overrun in construction projects. Also, according to the model presented in this study, the factors in the labor subsystem with 36.3%, overhead with 24.4%, materials with 21.7%, and the equipment with 17.6%, respectively, have the most effect on the cost overrun. Finally, the most important loops related to cost overrun has been identified.

Today organizations are basically characterised by their emphasis on knowledge and information. Modern organizations, unlike those of the past, need to capture, manage, and utilize knowledge and information in order to improve performance, manage, and pursue endless change and gain a sustainable competitive advantage. It is necessary to pay attention to the knowledge and management of it in the municipalities due to the diverse range of projects and the use of diverse expertise and consultants in order to advance organizational goals and projects in order to be temporary. The aim of this study was to analyze the latent causal relationships of the stages of the knowledge management process in the technical and civil field of Shiraz Municipality. This research is applied in terms of purpose and descriptive in terms of nature and method. In order to collect data, a questionnaire was prepared using the test method and decision evaluation. Information was completed by ten experts in the technical and civil field of Shiraz Municipality with at least ten years of experience in construction projects in Shiraz. The collected data were analyzed by Excel software. The results showed that knowledge storage is the most effective process on knowledge management in the technical and civil field of Shiraz Municipality.