Now showing items 1-12 of 12

  • A combined fuzzy AHP-simulation approach to CAD software selection 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(Taylor & Francis Ltd, 2010)
    In this paper a combined approach where the fuzzy analytic hierarchy process (AHP) and simulation come together is presented to select the best computer-aided design (CAD) software out of the available options in the market. The fuzzy AHP is used due to the vagueness and uncertainty of the judgements of a decision maker(s) because the crisp pair-wise comparison in the conventional AHP seems to be insufficient and imprecise to capture the right judgements of the decision maker(s). In this study ...

  • A fuzzy AHP approach to evaluating machine tool alternatives 

    Authors:Ayaǧ, Zeki; Özdemir, Rifat Gürcan
    Publisher and Date:(Springer, 2006)
    Selecting process of a machine tool has been very important issue for companies for years because the improper selection of a machine tool might cause of many problems affecting negatively on productivity precision flexibility and company's responsive manufacturing capabilities. On the other hand selecting the best machine tool from its increasing number of existing alternatives in market are multiple-criteria decision making (MCDM) problem in the presence of many quantitative and qualitative ...

  • A fuzzy AHP-PROMETHEE II approach for evaluation of solar power plant location alternatives in Turkey 

    Authors:Samanlıoğlu, Funda; Ayaǧ, Zeki
    Publisher and Date:(IOS Press, 2017)
    Solar energy produced through a solar power plant is a freely available non-polluting renewable source of energy that reduces the greenhouse effect. Selecting the best location for a solar power plant among several location alternatives is a complicated multiple criteria decision making (MCDM) problem since several potentially conflicting quantitative and qualitative criteria needs to be taken into consideration. In this paper of the most commonly used MCDM methods in literature

  • A Fuzzy ANP Approach To Evaluate Computer Simulation Packages 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(Inderscience Enterprises Ltd., 2016)
    In this study an intelligent approach is presented to help any simulation practitioner to evaluate simulation software alternatives and determine the best satisfying one based on his/her needs. On the other hand this evaluation process is a typical multiple criteria decision making (MCDM) problem in the presence of evaluation criteria and a set of possible alternatives and there are many methods in the literature which have been used to successfully carry out this difficult and time-consuming ...

  • A hybrid approach to concept selection through fuzzy analytic network process 

    Evaluating conceptual design alternatives in a new product development (NPD) environment has been one of the most critical issues for many companies which try to survive in the fast-growing world markets. Therefore most companies have used various methods to successfully carry out this difficult and time-consuming evaluation process. Of these methods analytic hierarchy process (AHP) has been widely used in multiple-criteria decision-making (MCDM) problems. But in this study we used analytical ...

  • An intelligent approach to ERP software selection through fuzzy ANP 

    Authors:Ayaǧ, Zeki; Özdemir, Rıfat Gürcan
    Publisher and Date:(Taylor & Francis, 2007)
    During the implementations of enterprise resource planning (ERP) systems most companies have experienced some problems one of which is how to determine the best ERP software satisfying their needs and expectations. Because improperly selected ERP software may have an impact on the time required and the costs and market share of a company selecting the best desirable ERP software has been the most critical problem for a long time. On the other hand selecting ERP software is a multiple-criteria ...

  • An intelligent approach to machine tool selection through fuzzy analytic network process 

    Authors:Ayaǧ, Zeki; Özdemir, Rıfat Gürcan
    Publisher and Date:(Springer, 2011)
    In this study we utilize analytic network process (ANP) a more general form of AHP for justifying stand-alone machine tools out of available alternatives in market due to the fact that AHP cannot accommodate the variety of interactions dependencies and feedback between higher and lower level elements. However due to the vagueness and uncertainty on judgments of a decision-maker the crisp pair wise comparison in the conventional ANP seems to be insufficient and imprecise to capture the right judgments ...

  • An intelligent approach to prioritize logistics requirements in food industry 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(ExcelingTech Publishers, 2014)
    The aim of this study is to analyze dairy food industry and to determine the priorities of important logistics requirements (LR) based on customer requirements as a part of a supply management system. For product or service development quality function deployment (QFD) is a useful approach to maximize customer satisfaction. The determination of the priorities of the LR is an important issue during QFD process for product or service design. For this reason in this work an integrated approach ...

  • An intelligent approach to supplier evaluation in automotive sector 

    Authors:Ayaǧ, Zeki; Samanlıoğlu, Funda
    Publisher and Date:(Springer, 2016)
    During the process of supplier evaluation selecting the best desirable supplier is one of the most critical problems of companies since improperly selected suppliers may cause losing time cost and market share of a company. For this multiple-criteria decision making selection problem in this paper a fuzzy extension of analytic network process (ANP) which uses uncertain human preferences as input information in the decision-making process is applied since conventional methods such as analytic ...

  • Cad software evaluation for product design to exchange data in a supply chain network 

    Authors:Ayaǧ, Zeki
    Publisher and Date:(ExcelingTech Publishers, 2015)
    The sharing information in a supply chain environment especially CAD models and drawings are so important companies. So the selection of the most satisfying computer-aided design (CAD) software which enables to exchange data through supply chain network has been major issues for companies in a supply chain. The selection process of CAD software among the raising number of alternatives in the market has been very vital and critical issue for companies that aim to make their design and engineering ...

  • A comparison study of fuzzy-based multiple-criteria decision-making methods to evaluating green concept alternatives in a new product development environment 

    Authors:Ayağ, Zeki
    Publisher and Date:(EMERALD GROUP PUBLISHING LTD, 2021)
    Purpose In this paper, the four popular multiple-criteria decision-making (MCDM) methods in fuzzy environment are utilized to reflect the vagueness and uncertainty on the judgments of decision-makers (DMs), because the crisp pairwise comparison in these conventional MCDM methods seems to be insufficient and imprecise to capture the right judgments of DMs. Of these methods, as Fuzzy analytic hierarchy process (F-AHP) is used to calculate criteria weights, the other methods; Fuzzy Technique for Order ...

  • Fuzzy AHP-GRA approach to evaluating energy sources: a case of Turkey 

    Purpose Since the demand for energy has dramatically increased in the countries which have fast-growing population and economy, they have faced with a critical problem of how to evaluate a set of potential energy sources (i.e. nuclear, natural gas, bio, geothermal, hydro, wind and solar) and choose the ultimate energy source for their needs. On the other hand, this critical problem turns into a multiple-criteria decision-making (MCDM) in the presence of a set of energy source alternatives and ...