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Showing 6 results for Deployment
Volume 12, Issue 4 (1-2009)
Abstract
In both the quality improvement and the design of a product, primarily the engineering characteristics affecting product performance are identified and improved to optimize customer needs (CNs). Especially, the limited resources, increased market competition and product complexity require a customer-driven quality management and product development system to achieve higher customer satisfaction. Quality Function Deployment (QFD) and its House of Quality (HOQ) are used as powerful tools for improving product design and quality, and procuring a customer-driven quality system. In this study, an integrated framework based on fuzzy-QFD and a goal programming model was proposed to determine the technical requirements (TRs) to be considered in designing a product. The coefficients of the mathematical model were obtained from a fuzzy analytic network process (ANP) approach. Furthermore, the proposed analytic procedure should take into account the multi-objective nature of the problem, and thus, incorporate other goals such as cost, extendibility, technological feasibility and competitiveness of TRs. Finally, the model, a zero–one goal programming methodology, includes the important levels of TRs deriven using the fuzzy ANP, cost budget, feasibility level, extendibility level , and competitiveness level as system constraints to determine the TRs to be considered in designing the product. An application for YEKTA washing machine powder in PAKNAM Company (Tehran, Iran) producing detergent products was presented to illustrate the proposed framework.
Mahdi Fakoor, Negar Motamen,
Volume 14, Issue 13 (3-2015)
Volume 14, Issue 13 (3-2015)
Abstract
In this paper an efficient algorithm of system design with reliability approach is presented. Using this algorithm in subsystem designing of special systems may lead to systematically optimized design with reliability parameters attitude. By applying item tree parameters including general subsystem parameters into the algorithm and by knowing failure modes and the occurrence rate of each failure mode, the design may be improved and necessary reconsiderations can be applied in order to prevent or reduce the probability of failure mode. First some basic conceptual definitions including reliability, availability, capacity and failure rate is explained then various reliability analysis methods like Fault Tree Analysis (FTA), Failure Mode Effect Analysis (FMEA), Reliability Block Diagram (RBD) and Markov analysis is discussed. Reliability and availability distribution over different phases of unlocking and deploying mechanisms are illustrated using Windchill Solution. Subsequently the effect of the different ranges of failure rates of added components on reliability, availability and capacity of whole system is investigated. By analyzing the reliability and availability of system for different phases, it was found that the whole system is under stable situation at the end of each phase. Also results showed that the reliability, availability and capacity of whole system increased and reached a stable level by minimizing the failure rate of the redundant components.
Volume 15, Issue 3 (11-2011)
Abstract
Translating Strategy into Action; A Dynamic QFD Application with Third – Generation Balanced Scorecard Approach Mehdi akbari 1, Sepehr Ghazinoory 2 1- Postgraduate of M.S. in Faculty of Management & Economy, Tehran University, Tehran, Iran. 2- Associate Professor, Department of Management, Faculty of Management & Economy, Tarbiat Modares University, Tehran, Iran. Received: 2 /10/2010 Accept: 12/1/2011 In order to achieve a strategy-focused organization, creating alignment, focus and understanding of the process of translating strategy into action at all organizational levels and processes are vital. But more important issue is that how to provide a quality translator in the spectrum of time. This paper shows how a company can use three-stage "quality function deployment" (QFD) method using the third generation balanced scorecard (BSC) approach for improving the quality of step by step translation strategy into action. Also, since in this article, the emphasis is on the operational level and translated initiatives and projects make solutions and action plans for achieving objectives, so the dynamic approach of quality function deployment method through the application of the dashboards is described. Finally, an application is presented in one of active companies in Oil industry to illustrate the proposed methodology.
Ali Asghar Heidari, Farid Karimipour,
Volume 16, Issue 12 (2-2017)
Volume 16, Issue 12 (2-2017)
Abstract
The robotic sensor deployment task to achieve maximum converge is one of the main phases in feasibility studies and development of communication infrastructures and environment monitoring systems. In this article, a new approach is proposed to treat the maximum coverage in 3D vector spaces. For this purpose, a new geometric strategy is first presented to compute the area covered by an individual sensor. To maximize the coverage of the robotic network, the fractal search algorithm was employed. This population-based evolutionary algorithm has been proposed based on the growth of the random fractal and demonstrates a robust performance in tackling constrained and unconstrained optimization problems. Then, based on several scenarios and by considering spatial constraints, the efficiency of the fractal search optimizer was compared with other methods in terms of robustness, running time, quality of the coverage results, convergence rate, as well as the statistical test of Wilcoxon. The comprehensive assessment and analysis of the results certify better performance of the proposed approach to maximize the coverage in 3D vector spaces. The proposed approach can obtain the optimal deployment and coverage of the robots by the best convergence rate and computational and statistical precision.
Volume 17, Issue 4 (1-2014)
Abstract
In modern business environments, agility is advocated as the fundamental characteristics for competitiveness. Little research, however, exists which provides integrated methodologies suitable to be practically adopted to enhance agility of companies. In this research, we utilized an original approach, which, by linking competitive bases, agile attributes and agile enablers, aims at identifying the most appropriate enablers to be effective for increasing company´s agility. The approach is based on the quality function deployment (QFD) methodology, and, in particular, on the house of quality (HOQ), which has been successfully adopted in the new product development field. The whole scaffold exploits fuzzy logic, to translate linguistics judgements required for relationships and correlations matrixes into numerical values. In point, this approach applied in Auto Part industry (case study: Bahman Khodro Group) and identified suitablt enablers in this industry. Supply chain management in this industry was recognized as the most important enabler . knowledge management, information technology, concurrent engineering, team building, project management, hardware, and were then placed in the ranks. The main limitations of this research can be time consuming due to the calculation of the QFD cited. In this study, due to better express dependencies and Correlations at HOQ fuzzy numbers were used to describe the relationship accurately.
Volume 22, Issue 2 (8-2018)
Abstract
Introduction: The city of Mashhad, as one of the major tourist destinations of religious pilgrims in Iran and in the world, has experienced very worrying conditions in recent years, and not only the pilgrims entering into this city have turned into poor groups with low financial abilities, but the stay of all pilgrims, especially those who are highly financially well-off has also fallen dramatically. Although several activities have been undertaken by relevant organizations in this regard, the results have not been consistent with expectations. For this reason, it was necessary to determine what these activities were, how much they were coordinated with the existing requirements, and why the goals had not been fulfilled in the first place. In order to answer these questions and in view of the efficiency of the technique of expanding the qualitative function in extracting the needs and requirements of the product and providing customer satisfaction, the researcher in this study has tried to extract the requirements and demands of tourists entering Mashhad using this tool, after which the aim was to prioritize them and evaluate the activities carried out in the city. Accordingly, the present study is performed in order to identify and evaluate the needs and expectations of tourists in Mashhad City.
Methodology: The research method is descriptive and statistical population included all tourists who have traveled to this city at least twice in the last 10 years. According to the inclusion criteria for entering the selected sample, the list of tourists entering the city of Mashhad during the study period is extracted from the police forces and the people who have at least two trips to Mashhad are identified after which their names are arranged based on the ravel time . After listing, the people with the highest number of trips to Mashhad are selected as the first members and the rest are randomly selected afterwards. The statistical sample size is estimated to be 200 participants based on Cochran formula, but it increased to more than 350 participants for more certainty, and finally 342 people entered the final analysis. Thirty specialists are involved in determining the infrastructure and facilities needed for tourism purposes. The data are collected using a researcher-made questionnaire whose validity and reliability are confirmed. Data are analyzed using the quality function deployment technique and one-sample T-test. Analytical hierarchy analysis (AHP) is used in determining the importance of needs and requirements.
Conclusion and discussion: The results show that the quality of residential centers, security, low cost and cheapness, tolls and incomes, public acceptance, introduction and promotion, cultural facilities, handicrafts, support facilities, and scope and variety of activities are respectively in the first to tenth priority of needs and the expectations of customers based on specific features. Moreover, based on the results of single-sample T-test, and in response to the first question of the study, the most important demands and needs of customers from the product can be considered as follows: reasonable and low prices of services and facilities, quality of residential centers, introduction and promotion, public acceptance, supportive facilities, tolls and incomes, security, scope and variety of activities, handicrafts, and cultural facilities. In the next step, in order to answer the second question of the study, paired comparisons are used to determine the importance of customers' needs and demands. For this purpose, after distributing the paired comparison questionnaire, the data are collected and analyzed. Accordingly, the Inconsistency Ratio (IR) is calculated for the pairwise matrix equal to less than 0.1. Therefore, considering the compatibility method of the pair comparison matrix in the AHP method, it can be said that the Inconsistency Ratio of the paired comparisons has been achieved at an acceptable level. This indicates the accuracy of the results of the initial weights obtained by the AHP method for customer requirements. In order to build a quality house, after identifying the needs of customers and in order to answer the third question, it is necessary to determine the technical characteristics proportional to each requirement. To this end, after identifying customers' needs, a team of experts is formed and their views on each requirement and its relevance to the needs and requirements of customers were obtained. Finally, by summarizing comments and several meetings, 15 related technical characteristics are presented. After determining the technical characteristics of each of the requirements, in the next stage, the position of the provided product is determined in comparison with competitors' products (Isfahan and Shiraz). After the calculations and evaluation of competitors, in order to develop and improve the needs and requirements of customers, it is decided to use the results of this section in the next steps of the work. According to these calculations, prioritizing customers' needs is placed from the first to the tenth by relative priority index (for the quality of residential centers and the range and variety of activities respectively). In order to calculate the improvement ratio which is determined by the division of the column with the title of the program into the current status column, the program's target value is first determined to meet the customer's requirements, and in order to determine the program targeting values and the answer to the fourth question, the expert group is asked to set the target values to meet customers’ requirements. Based on the views of the above group, from the needs and technical requirements related to each of needs, public participation and promotion of tourism culture are ranked in the first priority while timing of travel and distribution of passengers throughout the year were ranked in the last priority.
Conclusion: According to the findings of this study, the quality and diversity of residential centers, the existence of primary security, and the balanced price of the basic needs of tourists are in the first to third priority, and to meet these demands and expectations, attention to public participation and promotion of tourism culture in the city, the use of modern and efficient technology in providing necessary services and facilities, as well as control and supervision in the quantitative and qualitative dimensions of services, are the most important factors.
Methodology: The research method is descriptive and statistical population included all tourists who have traveled to this city at least twice in the last 10 years. According to the inclusion criteria for entering the selected sample, the list of tourists entering the city of Mashhad during the study period is extracted from the police forces and the people who have at least two trips to Mashhad are identified after which their names are arranged based on the ravel time . After listing, the people with the highest number of trips to Mashhad are selected as the first members and the rest are randomly selected afterwards. The statistical sample size is estimated to be 200 participants based on Cochran formula, but it increased to more than 350 participants for more certainty, and finally 342 people entered the final analysis. Thirty specialists are involved in determining the infrastructure and facilities needed for tourism purposes. The data are collected using a researcher-made questionnaire whose validity and reliability are confirmed. Data are analyzed using the quality function deployment technique and one-sample T-test. Analytical hierarchy analysis (AHP) is used in determining the importance of needs and requirements.
Conclusion and discussion: The results show that the quality of residential centers, security, low cost and cheapness, tolls and incomes, public acceptance, introduction and promotion, cultural facilities, handicrafts, support facilities, and scope and variety of activities are respectively in the first to tenth priority of needs and the expectations of customers based on specific features. Moreover, based on the results of single-sample T-test, and in response to the first question of the study, the most important demands and needs of customers from the product can be considered as follows: reasonable and low prices of services and facilities, quality of residential centers, introduction and promotion, public acceptance, supportive facilities, tolls and incomes, security, scope and variety of activities, handicrafts, and cultural facilities. In the next step, in order to answer the second question of the study, paired comparisons are used to determine the importance of customers' needs and demands. For this purpose, after distributing the paired comparison questionnaire, the data are collected and analyzed. Accordingly, the Inconsistency Ratio (IR) is calculated for the pairwise matrix equal to less than 0.1. Therefore, considering the compatibility method of the pair comparison matrix in the AHP method, it can be said that the Inconsistency Ratio of the paired comparisons has been achieved at an acceptable level. This indicates the accuracy of the results of the initial weights obtained by the AHP method for customer requirements. In order to build a quality house, after identifying the needs of customers and in order to answer the third question, it is necessary to determine the technical characteristics proportional to each requirement. To this end, after identifying customers' needs, a team of experts is formed and their views on each requirement and its relevance to the needs and requirements of customers were obtained. Finally, by summarizing comments and several meetings, 15 related technical characteristics are presented. After determining the technical characteristics of each of the requirements, in the next stage, the position of the provided product is determined in comparison with competitors' products (Isfahan and Shiraz). After the calculations and evaluation of competitors, in order to develop and improve the needs and requirements of customers, it is decided to use the results of this section in the next steps of the work. According to these calculations, prioritizing customers' needs is placed from the first to the tenth by relative priority index (for the quality of residential centers and the range and variety of activities respectively). In order to calculate the improvement ratio which is determined by the division of the column with the title of the program into the current status column, the program's target value is first determined to meet the customer's requirements, and in order to determine the program targeting values and the answer to the fourth question, the expert group is asked to set the target values to meet customers’ requirements. Based on the views of the above group, from the needs and technical requirements related to each of needs, public participation and promotion of tourism culture are ranked in the first priority while timing of travel and distribution of passengers throughout the year were ranked in the last priority.
Conclusion: According to the findings of this study, the quality and diversity of residential centers, the existence of primary security, and the balanced price of the basic needs of tourists are in the first to third priority, and to meet these demands and expectations, attention to public participation and promotion of tourism culture in the city, the use of modern and efficient technology in providing necessary services and facilities, as well as control and supervision in the quantitative and qualitative dimensions of services, are the most important factors.
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