- Sakarya, Sakarya, Turkey
Esra Tekez
Sakarya University, Industrial Engineering, Department Member
In a competitive environment, companies need to respond to customers faster. Knowing what customers exactly want may enable firms to plan more accurately. Hence, synchronising demand and supply is important for order processing to achieve... more
In a competitive environment, companies need to respond to customers faster. Knowing what customers exactly want may enable firms to plan more accurately. Hence, synchronising demand and supply is important for order processing to achieve responsiveness. This study focuses on demand integration practices and is carried out at the office furniture factory. Considering the integration of customer and supply chain strategy, a web-based expert system (ES) is developed in this study. Moreover, database of enterprise resource planning (ERP) of factory is integrated to the web-based ES in order to take account of availability of materials and capacities. The developed ES captures the customers’ requirements in a consistent manner and compares them against the specifications of product inventory on hand. If there is a need, it evaluates factory capabilities in order to decide to manufacture or not according to the requested due date and then, it can generate new alternative due date when th...
Research Interests:
Supplier evaluation is a significant work for a company in order to enhance productivity and profitably. When a well-managed supplier evaluation is developed, it has an important impact on the competitiveness of the entire supply chain.... more
Supplier evaluation is a significant work for a company in order to enhance productivity and profitably. When a well-managed supplier evaluation is developed, it has an important impact on the competitiveness of the entire supply chain. By examining the literature, it was seen that a great deal of papers are related to evaluation during new supplier selection process. However, there is the scarcity of studies to evaluate performance depending on the difficulty. The purpose of this paper is to focus on performance evaluation currently being worked with suppliers. In this context, it is investigated Enterprise Resource Planning usage in order to collect and track real-time data for supplier evaluation systems, especially examined small-to-medium-sized enterprises. With this in mind, this study conducts a questionnaire on the small-to-medium-sized enterprises. Subsequently, by referring to the results of this work, a new evaluation model with dynamic structure is developed with the uti...
Research Interests:
PurposeThe purpose of this paper is to evaluate the impact of lean criteria on leanness as well as prioritize them, taking the relationships between dimensions into consideration for manufacturing... more
PurposeThe purpose of this paper is to evaluate the impact of lean criteria on leanness as well as prioritize them, taking the relationships between dimensions into consideration for manufacturing enterprises.Design/methodology/approachThis study considers leanness over quality, cost, delivery and innovation (QCDI) performance dimensions. Twenty eight criteria related with these dimensions were determined that are focused on manufacturing organizations and then fuzzy analytic network process (ANP) approach was used to determine the influence value of each criterion on leanness.FindingsThe existing literature shows a lack of studies on systematically measuring the impact of lean criteria on leanness. To fill the gap, this paper presents a fuzzy ANP approach. Firstly interactions between the performance dimensions were configured. Then, according to the relationship, weights were obtained while taking the network structure that allows dynamic multidirectional relationships for interde...
Research Interests:
Research Interests:
Research Interests:
Research Interests: Mathematics and TOPSIS
Manufacturing enterprises need the ability to respond to rapid changes in the market more than ever before. Besides, they are forced to constantly modify their culture and internal organization structures because of change and intense... more
Manufacturing enterprises need the ability to respond to rapid changes in the market more than ever before. Besides, they are forced to constantly modify their culture and internal organization structures because of change and intense competition in the market. This ...
Research Interests:
Research Interests:
Manufacturing systems need to cope with marketing changes and dynamic events to remain competitive environment. The heterogeneity of the environment makes the total management of manufacturing a complex problem. This indicates importance... more
Manufacturing systems need to cope with marketing changes and dynamic events to remain competitive environment. The heterogeneity of the environment makes the total management of manufacturing a complex problem. This indicates importance of manufacturing planning as it actively affects the overall manufacturing system. This paper describes a multi-agent based architecture for manufacturing planning. Decision making process is distributed among intelligent and autonomous agents. Such an approach allows easy overcoming of manufacturing planning problems. Coordination in the planning system is established through own behavior of the agents. This paper describes the general architecture and introduces respective planning agents. Note that, the proposed approach can promote integrated manufacturing environment which seems inevitable in the near future.
Research Interests:
Today's highly competitive business environment forces the managers to continuously make the best decisions in the shortest possible time. The ability to provide concurrency among manufacturing functions is a critical need for modern... more
Today's highly competitive business environment forces the managers to continuously make the best decisions in the shortest possible time. The ability to provide concurrency among manufacturing functions is a critical need for modern organizations as, especially, ...
Research Interests: Engineering, Computer Science, Knowledge Management, Quality Management, Strategic Management, and 10 moreIntelligent Manufacturing Systems, Decision Support Systems, Artficial intelligence, Knowledge Exchange, Multi Agent System, Knowledge Network, Business environment, Reference model, Manufacturing System, and Distributed Environment
Research Interests:
Musteri memnuniyetini saglamak icin hatalari tespit etmek, ortadan kaldirmak veya en aza indirmek onemlidir. Hata turu ve etkileri analizi (HTEA), kalite iyilestirme icin etkin bir arac olarak kabul edilmektedir. Bu calismada; FMEA, orme... more
Musteri memnuniyetini saglamak icin hatalari tespit etmek, ortadan kaldirmak veya en aza indirmek onemlidir. Hata turu ve etkileri analizi (HTEA), kalite iyilestirme icin etkin bir arac olarak kabul edilmektedir. Bu calismada; FMEA, orme surecinde bulanik TOPSIS kullanilarak gerceklestirilmistir. Bulanik mantigin gercek dunya problemlerindeki kesin olmayan enformasyonla ve belirsizlikle basa cikma becerisi nedeniyle, bulanik yaklasimi TOPSIS teknigine entegre edilerek kullanilmistir. Bu sekilde, hatalarin uzmanlar tarafindan dilsel degiskenler kullanilarak onceliklendirilmesi, yoneticilerin daha guclu oncelik siralamasina sahip en kritik olanlara odaklanmalarina olanak tanir.Bu calismada elde edilen sonuclara gore, merdane cekim hatasi, yag lekesi, olcu esitsizligi, tuse hatasi, kacik patlak, desen hatasi ve iplik kopmasi kritik hatalar olarak belirlenmistir. Bu hata turleri genellikle orgu makinesinin ayarlarinin dogru yapilmamasindan kaynaklanmaktadir. Bu hatalari gidermek icin; f...
Today's highly competitive business environment forces the managers to continuously make the best decisions in the shortest possible time. The ability to provide concurrency among manufacturing functions is a critical need for modern... more
Today's highly competitive business environment forces the managers to continuously make the best decisions in the shortest possible time. The ability to provide concurrency among manufacturing functions is a critical need for modern organizations as, especially, distributed environment requires synchronization of manufacturing functions. Moreover, manufacturing companies need to have strong capability of adaptation (agility) mainly because of the dynamic relationships that must be established between manufacturing units. To achieve these, there is a need for an integrated manufacturing system that will handle all interactions and interrelationships which will then be affected by the changes and create maximum gain under limited resources. In order to create and effectively manage such an integrated manufacturing system there is a need for a reference model. In this paper, such a reference model called REference Model for intelligent Integrated Manufacturing System (REMIMS) is introduced. REMIMS has hierarchical architecture with several agents responsible for different manufacturing functions. To facilitate REMIMS and allow interaction among the agents to share their knowledge, a specific knowledge exchange protocol in a knowledge network is being developed.
Research Interests:
Manufacturing enterprises need the ability to respond to rapid changes in the market more than ever before. Besides, they are forced to constantly modify their culture and internal organization structures because of change and intense... more
Manufacturing enterprises need the ability to respond to rapid changes in the market more than ever before. Besides, they are forced to constantly modify their culture and internal organization structures because of change and intense competition in the market. This ...
Research Interests:
To acquire a competitive advantage in the expanding market, manufacturing companies should be able to manage their supply chain as much effective as possible. Measuring the supply chain performance is one of the main indicators of... more
To acquire a competitive advantage in the expanding market, manufacturing companies should be able to manage their supply chain as much effective as possible. Measuring the supply chain performance is one of the main indicators of business success. Supply chain management (SCM) involves managing the flow of materials from suppliers to manufacturing units. This paper proposes a SCM model with performance measurement capabilities. The model is designed in such a way that it well suits to multi agent systems and related implementations. This paper highlights the components of the model especially pointing out the key parameters of performance indicators.
Research Interests:
Research Interests: Engineering, Knowledge Management, Quality Management, Strategic Management, Intelligent Manufacturing Systems, and 10 moreDecision Support Systems, Artficial intelligence, Knowledge Exchange, Multi Agent System, Multi Agent Systems, Knowledge Network, Business environment, Reference model, Manufacturing System, and Distributed Environment
Manufacturing systems need to cope with marketing changes and dynamic events to remain competitive environment. The heterogeneity of the environment makes the total management of manufacturing a complex problem. This indicates importance... more
Manufacturing systems need to cope with marketing changes and dynamic events to remain competitive environment. The heterogeneity of the environment makes the total management of manufacturing a complex problem. This indicates importance of manufacturing planning as it actively affects the overall manufacturing system. This paper describes a multi-agent based architecture for manufacturing planning. Decision making process is distributed among intelligent and autonomous agents. Such an approach allows easy overcoming of manufacturing planning problems. Coordination in the planning system is established through own behavior of the agents. This paper describes the general architecture and introduces respective planning agents. Note that, the proposed approach can promote integrated manufacturing environment which seems inevitable in the near future.