Person: ÖZTÜRKCAN AYKAÇ, Didem Selcen
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Didem Selcen
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ÖZTÜRKCAN AYKAÇ
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Conference ObjectPublication Open Access A review of timetabling and resource allocation models for light-rail transportation systems(2009) Öncül, S. D.; Aykaç, Didem Selcen Öztürkcan; Bayraktar, D.; Çelebi, D.; Business Administration; ÖZTÜRKCAN AYKAÇ, Didem SelcenThis paper surveys the relevant operations research literature on timetabling and resource allocationproblems with a special attention paid to the transportation systems. The purpose of this review is to define the critical objectives, determine the key components and identify the key issues for developing a comprehensive mathematical model for timetabling of light rail transit vehicles in sequence with the assignment of drivers as an available resource. In doing so, the implications of the emerging timetabling research is discussed, components of the mathematical models proposed are reviewed, and the extend they reflect real business practices are analyzed. Finally, fundamental issues and primary elements of a simple model in association with general timetabling and resource allocation problems are presented.
ArticlePublication Metadata only Online social capital : understanding e-impulse buying in practice(Elsevier, 2009-07) Kervenoael, R. de; Aykaç, Didem Selcen Öztürkcan; Palmer, M.; Business Administration; ÖZTÜRKCAN AYKAÇ, Didem SelcenSocially constructed marketing imageries (e.g. e-atmospherics) help consumers while making choices and decisions. Still, human and retailing technology interactions are rarely evaluated from a social practice perspective. This article explores the potential impact of socially constructed e-atmospherics on impulse buying. A framework with three interrelated factors, namely social acoustic, co-construction and mundane language enactment is analysed. The way these allow for e-social norms to organically emerge is elaborated through a set of propositions. Retailing implications are subsequently discussed.Conference ObjectPublication Open Access Social e-atmospherics in practice (or not): a French and Turkish web designers’ perspectives(2009) Bisson, C.; Kervenoael, R. de; Aykaç, Didem Selcen Öztürkcan; Business Administration; ÖZTÜRKCAN AYKAÇ, Didem SelcenLittle is known about the development of social e- atmospherics. And yet, e-atmospherics havemotivated an emerging body of research which reports that both better layouts and‘recognized’ atmospherics encourage consumers to modify their shopping habits. While the literature has analyzed mainly the functional (design) aspect of e-atmospherics, little has been done in terms of linking its characteristics’ to social (co-) creation. This paper attempts to redress the imbalance by exploring the anatomy from a website designer perspective of the social dimension of design in relation to e-atmospherics, which includes factors such as the aesthetic design of space and the influence of visual cues as a socially constructed meaning. We identify the challenges that web designers as social agents, who interact within intangible social reference sets, restricted by social standards, value, beliefs, status and duties, face daily within their work. We aim to review the current understanding of the importance and voluntary integration of social cues displayed by web designers from a mature market and an emerging market, and provides an analysis based recommendation towards the development of an integrated e-social atmospheric framework. Results report exploratory findings from questionnaires with 10 French and 16 Turkish web designers. These allow us to re-interpret the web designers’ reality regarding social e-atmospherics. We contend that by comprehending (before any consumer/client input) social capital, daily micro practices, habits and routine of designers, a deeper understanding of social e-atmospherics possible functions in the future will be unpacked.Conference ObjectPublication Metadata only An actor-network theory (ANT) approach: analysis of Turkish e-government gateway initiative(2009) Aykaç, Didem Selcen Öztürkcan; Kervenoael, R. de; Kasap, N.; Eryarsoy, E.; Business Administration; ÖZTÜRKCAN AYKAÇ, Didem SelcenThere are various models proposed in the literature to analyze trajectories of e-Government projects in terms of success and failure. Yet, only the Actor-Network Theory (ANT) perspective (Heeks and Stanforth, 2007) considers the interaction factors among network actors and actants. This paper proposes the ANT for approaching to the Turkish e-Government Gateway initiative as a case study. In doing so, it provides valuable insight in terms of both local and global actornetworks which surround the initiative.Conference ObjectPublication Open Access Premium e-grocery: exploring value in logistics integrated service solutions(2009-02-12) Bozkaya, B.; Kervenoael, R. de; Aykaç, Didem Selcen Öztürkcan; Business Administration; ÖZTÜRKCAN AYKAÇ, Didem SelcenE-grocery is gradually becoming viable or a necessity for many families. Yet, most e-supermarketsare seen as providers of low value “staple” and bulky goods mainly. While each store has a large number of SKU available, these products are mainly necessity goods with low marginal value for hedonistic consumption. A need to acquire diverse products (e.g., organic), premium priced products (e.g., wine) for special occasions (e.g., anniversary, birthday), or products just for health related reasons (e.g., allergies, diabetes) are yet to be served via one-stop e-tailers. In this paper, we design a mathematical model that takes into account consumers’ geo demographics and multi-product sourcing capacity for creating critical mass and profit. Our mathematical model is a variant of Capacitated Vehicle Routing Problem with Time Windows (CVRPTW), which we extend by adding intermediate locations for trucks to meet and exchange goods. We illustrate our model for the city of Istanbul using GIS maps, and discuss its various extensions as well as managerial implications.