Ayrıntılı Bilimsel Program ve Bildiri Özetleri - YAEM2010

YAEM 2010
YÖNEYLEM ARAÞTIRMASI VE ENDÜSTRÝ MÜHENDÝSLÝGI 30. ULUSAL KONGRESÝ
Appointment System Modeling in Presence of Seasonal
Demand and Walk-ins in Outpatient Care
1 2
Tuðba Çayýrlý , Evrim Didem Güneþ
1 Faculty of Economics & Administrative Sciences, Özyeðin University,
Istanbul
2 College of Administrative Sciences & Economics, Koç University,
Istanbul
This study investigates a hierarchical model that links two models in
order to integrate capacity and appointment decisions. The first model
deals with access rules that determine the number of slots to make
available for each period. The goal is to better match demand and
capacity by anticipating and planning for seasonal variation in
demand, both in terms of requests for appointments as well as walk-
ins. The second model deals with appointment rules based on pre-
scheduled number of patients from the earlier model. Performance is
evaluated in terms of both direct and indirect wait, doctor idle time
and overtime. The study evaluates strategies for coping with
seasonality that include double-booking when seasonal walk-ins
exceed average walk-ins and leaving open slots otherwise. Best slot
positions are investigated for each case. The main and interaction
effects of access rules, appointment rules and environmental factors
including walk-ins and their seasonality patterns are analyzed.
Characterizing Workflow in Hospital Emergency Departments
1 2
Mustafa Özkaynak , Patricia Flatley Brennan
1 Department of Industrial and Systems Engineering, University of
Wisconsin-Madison
2 Department of Industrial and Systems Engineering and School of
Nursing, University of Wisconsin-Madison
Industrial engineering research develops and assesses models,
prototypes, approaches and methodologies to design and redesign
work systems. As the focus of industrial engineering research shifts
from better known manufacturing settings to less known work
systems such
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