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Conference Object Enterprise Resource Planning Implementation Differences Within the Same Methodology - Case Study From West Europe and Turkey(Acad Conferences Ltd, 2011) Erkan, Turan ErmanEnterprise Resource Planning (ERP) systems are vital for competitive edge in today's business world. ERP is an integrated information system that serves all departments within an enterprise. Therefore, business processes should be optimised before ERP implementation in order to catch a perfect implementation. Before year 2000 all the giant firms realised their ERP projects and after that best practises took place. After those trial and error based experiences, ERP vendors need to form an ERP implementation methodology. Big ERP vendors developed implementation methodologies, they were almost the same; starting from project preparation to selection, implementation to maintenance and control. Those project methodologies improved the success rate of ERP implementations. This research is both empirical and qualitative. In fact it consists of two monographic researches. They are both about ERP implementations in the same sector. One of the firms is a national one and other one is a multinational one. Both implementations done by the same consultant team with the same methodology, so the evaluation of the project is more objective than any other questionnaire based ones, which are filled by different implementation teams. The findings of the comparison are surprisingly different from each other within the implementations, although they both used the same methodology. Basic steps of the ERP implementation such as: project preparation, business blueprint, realization, final preparation and go live & support differs from each other both in national and multinational firms. The major difference is seen in the first steps which are project preparation and business blueprint. Multinational firm seems to have more chance than the national one in achieving organisational efficiency through successful ERP implementation. The research outcome is useful for professionals running implementation projects and those making decisions on ERP implementation. The results can also be used by practitioners managing ERP projects in order to avoid from implementation methodology illusion.Article TEDARİK ZİNCİRİ PERFORMANSININ ENTEGRE İKİ AŞAMALI KÜMELEME VE ARALIK TİP-2 BULANIK TOPSİS YÖNTEMİ KULLANARAK DEĞERLENDİRİLMESİ: BİR VAKA ÇALIŞMASI(2019) Erdem, Mehmet; Erkan, Turan ErmanTedarik zinciri (TZ) yönetiminde birçok araştırmacı ve kuruluş sistemin performansını iyileştirmek için farklı perspektiflerde çaba sarfetmektedir. Farklı sektörlerde TZ performansını değerlendirmek için çeşitli metrikler ve karar verme metodolojileri önerilmiştir. Bu çalışmada, TZ performans değerlendirme süreçleri için bütünleşik iki aşamalı kümeleme ve aralık tip-2 bulanık TOPSIS yöntemi önerilmektedir. Önerilen bu yaklaşımın ilk adımında, iki aşamalı kümeleme analizi ile sektörlerin homojen olarak bölümlendirilmesi ve aynı zamanda problemin boyutunun azaltılması sağlanmaktadır. İkinci adımda, bulanık TOPSIS ile oluşturulan kümeler değerlendirilmektedir. Yaklaşımın sonuçları, örgütsel etkinlik ve şirket performansı gibi konularda makro bakış açısı sağlamaktadır. Ayrıca sonuçlar, her şirketin bulunduğu kümelerdeki rakipleri arasında ve diğer sektörlerdeki rakiplere karşı kendini değerlendirme fırsatı sağlamaktadır.Article Citation - WoS: 2Citation - Scopus: 4Exploiting Visual Features in Financial Time Series Prediction(Igi Global, 2020) Karacor, Adil Gursel; Erkan, Turan ErmanThe possibility to enhance prediction accuracy for foreign exchange rates was investigated in two ways: first applying an outside the box approach to modeling price graphs by exploiting their visual properties, and secondly employing the most efficient methods to detect patterns to classify the direction of movement. The approach that exploits the visual properties of price graphs which make use of density regions along with high and low values describing the shape; hence, the authors propose the name 'Finance Vision.' The data used in the predictive model consists of 1-hour past price values of 4 different currency pairs, between 2003 and 2016. Prediction performances of state-of-the-art methods; Extreme Gradient Boosting, Artificial Neural Network and Support Vector Machines are compared over the same data with the same sets of features. Results show that density based visual features contribute considerably to prediction performance.Conference Object Citation - Scopus: 2Mba Students' Preference On: Online, Formal and Hybrid Mba Programs(Elsevier Science Bv, 2011) Rouyendegh, Babak Daneshvar; Erkan, Turan ErmanIn recent years, there has been a rapid rise in student enrolments in both online and formal MBA programs. This study is based on the results of a case study in which over 30 students enrolled in a top-ranked online and formal MBA program. Thus, the Fuzzy Analytic Hierarchy Process (FAHP) has been used for choosing the program. Due to the inability of AHP to deal with the impression and subjectiveness in the pair-wise comparison process, the FAHP has been used. The result of the research is interesting since neither an online nor a formal education program is preferred; a hybrid one has been developed. (C) 2011 Published by Elsevier Ltd.Conference Object Citation - WoS: 1Lifelong Learning Case Study From Turkish Public Sector: Business Process Management in Social Security Operations(Elsevier Science Bv, 2014) Akkoyun, Yilmaz; Erkan, Turan ErmanThe importance of Lifelong Learning is increasing in the international competitive environment. Many companies and public administration try to identify and modify their Lifelong Learning strategies for their sustainability. The purpose of this Lifelong Learning case study is underlying the importance of the phenomena in the Turkish public sector. Business process management was used as a tool for designing and improving the operations in the center and rural area offices of Social Security Institution. The case study was held by an expert of the institution in terms of Lifelong Learning. The improved and managed business processes was clarified in the study in detail. The study states that if there were not Lifelong Learning phenomena in action there would not be any improvement and evaluation of this improvement in the system. (C) 2013 The Authors. Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Academic World Education and Research Center.Conference Object Citation - WoS: 6Curriculum Change Parameters Determined by Multi Criteria Decision Making (mcdm)(Elsevier Science Bv, 2014) Erkan, Turan Erman; Rouyendegh, Babak DaneshvarCurriculum, research, instruction, learning and assessment are the pulse of the university. The main purpose of this study is to fill a substantial knowledge gap regarding reaching a uniform group decision in Industrial engineering curriculum design and planning. A comprehensive quality based course criterion model extracted from existing literature and expert opinions was developed. Multi Criteria Decision Making (MCDA) was used to identify the relative importance of course criteria for the purpose of tailoring an optimal four Industrial engineering curriculum for Bachelor's Degree students in Turkey.. The hierarchical model and analysis utilized in the present study will be useful for resolving several important multi-criteria decision-making issues in planning and evaluating Industrial Engineering programs. (C) 2013 The Authors. Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Academic World Education and Research Center.Article Bütünleşik Tedarik Zinciri Yaklaşımı ve Bir Lastik Ana Bayii Uygulaması(2011) Erkan, Turan Erman; Özdemir, Yavuz SelimGünümüz rekabetçi piyasasında, işletmelerin hayatta kalabilmesi ve rekabet edebilmesi için maliyetlerin düşürülmesi giderek daha büyük bir önem kazanmaktadır. Azaltılabilecek en önemli maliyet kalemlerinden bir tanesi de stok maliyetleridir. Bu çalışmada, bir satıcı ile birden çok alıcı arasındaki malzeme tedarik zinciri ilişkileri incelenmiştir. Çalışmanın amacı, alıcılar ile satıcının ortak bir yaklaşım benimseyerek, her alıcının siparişlerini satıcının belirlediği belirli zaman aralıklarında vermesi ve böylece satıcı ile alıcılardan oluşan sistemin ortak stok maliyetlerinin en aza indirilmesidir. Ancak bu durumda alıcıların maliyetlerinde belli bir miktar artış meydana gelmektedir. Bunu dengeleyebilmek için, satıcının alıcılara iskonto yapması gerekmektedir. Bu araştırmada, doğrusal olmayan bir model ile en küçük stok ve sistem maliyetleri elde edilmeye çalışılmıştır. Araştırmada kullanılan model, Ankara'da bir lastik bölge bayisinden ve onun alt bayilerinden alınan gerçek veriler üzerinde uygulanmıştır. Çalışmada kullanılan modelin uygulanması durumunda, lastik bölge bayiliğinin, alt bayilerinin ihtiyaçlarına daha hızlı cevap vermesi sağlanabilir. Ayrıca sistemin genel maliyetlerinde de önemli bir azalma oluşacaktır.Conference Object Intellectual Capital Management's Effects on Enterprise Resource Planning Implementation(Acad Conferences Ltd, 2012) Erkan, Turan Erman; Ozdemir, Yavuz Selim; Bac, UgurThe implementation of an Enterprise Resource Planning (ERP) system can be one of the most important strategic decisions an organization undertakes. An implementation of ERP system has effects on improving all over system performance. However, there are many factors affecting the performance of ERP implementation and these factors have to be inspected in accordance to some performance measurements and metrics. Intellectual Capital Management (ICM) is one of the most important factors of ERP implementation. The ICM literature has produced tens of models to support the various ICM activities, such as identification, measurement, valuation, acquisition and reporting of intellectual capital. However, the practice of applying various ICM models seems to be a fairly new issue in many countries and organizations. Turkey is one of those countries that has just been introduced with ICM. Using an ICM system has different effects on the implementation of an ERP system. In this study, a questionnaire based research has been made on Turkish enterprises to analyze ICM'S effects on ERP implementation. Also, we made a cross industrial research and determined those effects in different manufacturing sectors such as electronics and food sectors. Questionnaire results have been analyzed with statistical methods to summarize the current situation. The results of this study can be used to compare the effects of implementation of ERP systems in different industries in Turkey. Understanding of this relationship is very important for current or future ERP implementations. Also these results can be used in the comparison of international differences of the effects of ICM on ERP implementation process.Article Citation - WoS: 44Citation - Scopus: 70Selection of Academic Staff Using the Fuzzy Analytic Hierarchy Process (fahp): a Pilot Study(Univ Osijek, Tech Fac, 2012) Rouyendegh, Babak Daneshvar; Erkan, Turan Erman; Industrial Engineering; Computer EngineeringEvaluating candidates' suitability for a selection of academic staff is an important tool for Human Resources Management (HRM) to select the most suitable candidates for required posts. There are various methods regarding the selection of staff in the field. As there are increasing improvements in the field of education, universities around the world demand high quality and professional academic staffs. The present paper examines a fuzzy Analytic Hierarchy Process (FAHP) for selecting the most suitable academic staff, where five candidates under ten different sub-criteria are evaluated and prioritised. The FAHP method adopted here uses Triangular Fuzzy Numbers (TFN). The inability of AHP to deal with the impression and subjectiveness in the pair-wise comparison process has been improved in the FAHP. Instead of a crisp value, the FAHP generates a range of values to incorporate the decision-makers uncertainty. Also, a real case study is presented.Article Citation - WoS: 247Citation - Scopus: 350Supply Chain Performance Measurement: a Literature Review(Taylor & Francis Ltd, 2010) Akyuz, Goknur Arzu; Erkan, Turan ErmanThis paper is intended to provide a critical literature review on supply chain performance measurement. The study aims at revealing the basic research methodologies/approaches followed, problem areas and requirements for the performance management of the new supply chain era. The review study covers articles coming from major journals related with the topic, including a taxonomy study and detailed investigation as to the methodologies, approaches and findings of these works. The methodology followed during the conduct of this research includes starting with a broad base of articles lying at the intersection of supply chain, information technology (IT), performance measurement and business process management topics and then screening the list to have a focus on supply chain performance measurement. Findings reveal that performance measurement in the new supply era is still an open area of research. Further need of research is identified regarding framework development, empirical cross-industry research and adoption of performance measurement systems for the requirements of the new era, to include the development of partnership, collaboration, agility, flexibility, information productivity and business excellence metrics. The contribution of this study lies in the taxonomy study, detailed description and treatment of methodologies followed and in shedding light on future research.
