Arama Sonuçları

Listeleniyor 1 - 4 / 4
  • Yayın
    The risk perception of it outsourcing in Turkey
    (Işık Üniversitesi, 2013-08-28) Bingöl, Erdem; Sevgi, Cüneyt; Işık Üniversitesi, Fen Bilimleri Enstitüsü, Enformasyon Teknolojileri Yüksek Lisans Programı
    The competition in today's business is getting stronger each day. Due to its proven cost reduction potential the usage of Information Technology (IT) outsourcing and the flexibility it provided are among the attractive and effective features to both SMEs (Small Medium enterprises) and large enterprises. Most enterprises with different sizes decide to transfer some or all of their IT services to outsourcing vendors. Implementing IT outsourcing has some advantages such as decreasing time required to enter a market, increasing quality, enhancing customer satisfaction, and allowing an organization to focus on its core areas. However, the use of IT outsourcing comes with many risks which need to be carefully evaluated before any engagement. This thesis surveys the recent literature for the most important risk factors inherent to the IT outsourcing such as increase in expenses, increased dependence on outsourcing firm, confidentiality and communication problems, etc. Herein, we focus on identifying the IT outsourcing usage characteristics and understanding the perception of IT outsourcing risk factors by conducting a survey in both IT companies and IT departments of the companies in Turkey. The conducted data obtained by the survey is used to discover the variance among the management levels of IT personnel, in the perceived factors that may lead to IT outsourcing risks. We analyze the survey data and portrayed the current situation of risks of IT outsourcing perceived by IT practitioners in Turkey.
  • Yayın
    Readiness and mindset for IT offshoring: Insights from banking and insurance organizations
    (2009-07-13) Aydın, Mehmet Nafiz; de Groot, Jeroen; Van Hillegersberg, Jos
    In this research we examine the IT offshore outsourcing (offshoring) practice of a number of leading finance and insurance organizations in the Netherlands. In particular, we investigate the readiness (the state, condition or quality of being ready) and mindset (habits, opinions which affect a person's attitudes) of the organizations for IT offshoring. We examine IT offshoring practice from the process perspective (that is, the dynamics of IT offshoring projects in terms of culture, method use, IT activities, IT governance, knowledge sharing). Among other findings, this research shows that to a greater extent the organizations have realized readiness for method use and mindset for IT activities, and that the overall improvements regarding these aspects have been modest in a two-year period. On the other hand, mindset for dealing with cultural difference has increased while readiness for flexible working, tracking of requirements change, efficient division of work, and systematic communication is still inadequate. Theoretical and practical implications of the findings are further discussed.
  • Yayın
    Optimal project duration for resource leveling
    (Elsevier Science BV, 2018-04-16) Atan, Sabri Tankut; Eren, Elif
    Resource leveling is important in project management as resource fluctuations are costly and undesired. Typically, schedules with better resource profiles are obtained by shifting the activities within their float times using the schedule of fixed duration found by Critical Path Method. However, if the project duration can be extended, it is plausible to find a schedule with enhanced resource leveling since a longer duration allows for more float time for all activities. In this work, we relax the assumption of fixed durations in resource leveling formulations and investigate what the minimal project duration for the best leveled schedule should be. We provide mixed-integer linear models for several leveling objectives including the Release and Rehire metric. We show that not all metrics used for leveling under fixed durations may be appropriate when the project duration becomes a decision variable. Optimal solutions from smaller problems are used to find the magnitude of the extension needed and benefits obtained thereby. Since the problem is a NP-hard problem for which exact solutions cannot be obtained for large networks in reasonable time, we provide a greedy heuristic to be used with the Release and Rehire metric. Using an iterative framework, we also test the performance of a state-of-the-art heuristic algorithm from the literature on our problem. Computational experiments indicate that the more the number of resources is increased, the less leveling benefits are gained from extending the project. The optimal project durations and extension benefits can also be significantly different for different metrics.
  • Yayın
    Action readiness and mindset for IT offshoring
    (Emerald Group Publishing Limited, 2010) Aydın, Mehmet Nafiz; de Groot, Jeroen; van Hillegersberg, Jos
    Purpose: The paper aims to examine the degree of changes in action readiness and mindset for the IT offshore outsourcing (offshoring) practice of a number of leading finance and insurance organisations. In particular, the article investigates the action readiness (the state, condition or quality of being ready) and mindset (habits, opinions or perceptions which affect a person's attitudes) of organisations for IT offshoring. Design/methodology/approach: The research method applied has explorative research characteristics and consisted of two phases. The first phase included conducting interviews with project managers of 12 organisations in home and offshore countries and the second phase was concerned with an in-depth analysis of projects in three organisations. By adopting a process research approach, the research takes into account the dynamics of IT offshoring projects in terms of five essential aspects, i.e. the way of working culture, method use, IT activities, IT governance, and knowledge sharing. Findings: The findings indicate that to a greater extent organisations have realised readiness for method use and the mindset for IT activities, and that the overall improvements regarding these aspects have been modest in the last two years. On the other hand, the mindset for dealing with cultural difference has increased while readiness for flexible working, tracking of requirements change, efficient division of work, and systematic communication is still inadequate. Research limitations/implications: As the findings are concerned with a small sample and particular industries, they are limited in nature. More research is needed to update the findings in other industries with a larger sample. This would help in achieving stronger external validity. Practical implications: The model used in this research can help organisations in identifying how well they are prepared for or have improved IT offshoring practice in terms of five essential aspects. Based on the degree of readiness and mindset at hand, they can make use of the findings related to particular aspects. In this respect, the findings may provide valuable insights for practitioners. Originality/value: Most IT offshoring studies employ a variance research strategy, by which cause-effect relationships among dependent, independent, and mediating factors essential to the subject matter are studied. As an alternative to this strategy, this research adopts a process research approach, which is concerned with the dynamics of IT offshoring practice, which takes into account the emergent and on-the-fly nature of IT projects. Such dynamics are examined in terms of two conceptual levels, i.e. action readiness (ability, condition of being readiness) and mindset (opinions, perceptions). These levels, which are often employed as a separate focus in existing studies, are found to be useful in closing the gap between action readiness and mindset for IT offshoring.