Yaman BARLAS
Professor and Chair
Department of Industrial Engineering
Boğaziçi University,
34342 Bebek, Istanbul, Turkey.
Tel. (90) (212) 359 7073. Fax. (90) (212) 265-1800
URL: www.ie.boun.edu.tr/~barlas; Email: ybarlas@boun.edu.tr

EDUCATION
Ph.D. – Georgia Institute of Technology – 1985. Industrial and Systems Engineering.
M.S. – Ohio University – 1980. Industrial and Systems Engineering.
B.S. – Middle East Technical University, Turkey – 1978. Industrial Engineering.

ACADEMIC EXPERIENCE
Professor, Boğaziçi University, 1997 – present
Visiting Professor, University of Bergen, Norway, 2000.
Associate Professor, Boğaziçi University, 1993 – 1997.
Associate professor (with tenure), Miami University, 1990 – 1993.
Assistant Professor, Miami University, 1985 – 1990.
Graduate Research, Teaching Assistant, Georgia Institute of Technology, 1980-85.

PROFESSIONAL ORGANIZATIONS
• Founding member, System Dynamics Society; Member: Society for Computer Simulation; Sigma Xi scientific research society; Alpha Pi Mu Honor Society.
• President, System Dynamics Society, 1997 – 1998.
• Editor for short articles, System Dynamics Review, 1996 –
• Honorary Editor, Encyclopedia for Life Support Systems, 1999 –

GRANTS and AWARDS
• Boğaziçi University Teaching Excellence Award, 2006, 2008, 2009, 2010.
• Boğaziçi University Research Grant, 2009 – 2011.
• Boğaziçi University Research Grant, 2006 – 2008.
• Boğaziçi University Interdisciplinary Research Grant, 2002 – 2005
• Industrial Engineering Student Body, Teacher of the Year Award, 2003 and 2005.
• Boğaziçi University Research Excellence Award, 2000.
• Boğaziçi University Research Grant, 1997-1999.
• TUBITAK (National Science Association) Research Grant, 1996 – 1998.
• USA Window-on-Science visit grant, summer 1996.
• Boğaziçi University Research Grant, 1995 – 1996
• Boğaziçi University Research Grant, 1993 – 1994.
• The United Nations TOKTEN Consultancy Grant, Summer 1992, (Co-sponsored by Bogazici University and Istanbul Technical University, Istanbul, Turkey).
• Miami University Liberal Education Enrichment Grant, Summer 1991.
• Miami University Liberal Education Enrichment Grant, (Co-sponsored by Massachusetts Institute of Technology in form of free housing), Summer 1990.
• Miami University Summer Research Grant, 1988.
• Miami University Grant to Promote Research and Scholarship, 1988.
• Arthur Andersen Alumni Research Award, Summer, 1986.

TEACHING EXPERIENCE
Computer Simulation; Mathematical Modeling of Dynamical Systems; Systems Engineering; Dynamics of Socio-economic Systems; Forecasting/Time Series; Inventory Management; Deterministic Operations Research Models; Stochastic Operations Research Models; Basic Statistics.

CONSULTING/PROFESSIONAL EXPERIENCE
• Professional seminars/consultancy offered: Systems Approach and System Dynamics Modeling; Computer Simulation; System Dynamics Models for Strategic Management; Model Validity and Testing; Systems Thinking and Interactive Simulation Gaming in Management; Dynamics of Quality Management Strategies.
• Coordinator of Bogaziçi University's professional continuing education program in “Industrial Management”, 1993 – 1994.
• USDA Forest Service Project: Modeling of the different interacting elements of National Forest System Management, Atlanta, Georgia, 1980 – 1982.

CURRENT RESEARCH AREAS
Validation of Simulation Models; System Dynamics Methodology; Socio-economic strategic management problems; Educational Systems; Simulation as a Learning/Training Platform; Interactive Simulation Gaming.

PUBLICATIONS IN JOURNALS AND BOOKS
• “Demand forecasting and sharing strategies to reduce fluctuations and the bullwhip effect in supply chains” (with Barış Gündüz), Journal of the Operational Research Society, Vol.62, No.3, 2011, pp.458-473.
• “Dynamics of the North-South welfare gap and global sustainability” (with Gönenç Yücel), Technological Forecasting & Social Change, Vol.77, No.4, 2010, pp.594-614.
• “A Dynamic Simulator for the Management of Disorders of the Body Water Homeostasis” (with Özge Karanfil), Operations Research, Vol.55, No.6, 2008, pp.1474-1492.
• “Leverage points to march 'upward from the aimless plateau'”, System Dynamics Review, Vol.23, No.4, 2007, pp.469-473.
• “A Comprehensive Model of Goal Dynamics in Organizations: Setting, Evaluation and Revision,” (with Hakan Yaşarcan) in Complex Decision Making: Theory and Practice, ed. Hassan Qudrat-Ullah, J. Michael Spector, and Pal I. Davidsen, Springer-Verlag, 2007, pp.295-320.
• “Model simplification and validation with indirect structure validity tests” (with Ali K. Saysel), System Dynamics Review, Vol. 22, No.3, 2006, pp.241-262.
• “Goal setting, evaluation, learning and revision: A dynamic Modeling approach.” (with Hakan Yaşarcan), Evaluation and Program Planning, Vol.29, No.1, 2006, pp.79-87.
• “A Generalized Stock Control Formulation for Stock Management Problems Involving Composite Delays and Secondary Stocks” (with Hakan Yaşarcan), System Dynamics Review, Vol.21, No.1, 2005, pp.33-68.
•”Analysis of stock management gaming experiments and alternative ordering formulations” (with M. Günhan Özevin) Systems Research & Behavioral Science,Vol.21, No.4, 2004, pp.439-470.
• “Automated dynamic pattern recognition and testing" (with Korhan Kanar), System Dynamics Review (under revision).
• “Dynamic modelling of a shallow freshwater lake for ecological and economic sustainability” (with Burak Güneralp). Ecological Modelling,Vol.167, No.1-2, 2003, pp.115-138
•”System Dynamics: Systemic Feedback Modeling for Policy Analysis” in Knowledge for Sustainable Development - An Insight into the Encyclopedia of Life Support Systems, Vol.1, UNESCO-Eolss Publishers,Paris, France, Oxford, UK, 2002, pp.1131-1175.
• “Environmental sustainability in an agricultural development project: a system dynamics approach” (with Ali K Saysel and Orhan Yenigün), Journal of Environmental Management, Vol.64, No.3, 2002, pp.247-260.
• “A dynamic model of salinisation on irrigated lands” (with Ali K. Saysel), Ecological Modelling Vol.139, No.2-3, 2001, pp.177-199.
• “Dynamics of Strategic Insurance Management” (with Korkut Çırak and Ekrem Duman), System Dynamics Review, Vol.16, No.1, 2000, pp.43-58.
• “A Dynamic Simulation Game for Strategic University Management” (with Vedat Diker), Simulation and Gaming, Vol.31, No.3, 2000, p.331.
• Systems Approach to Learning and Education into the 21st Century (Proceedings of 15th International System Dynamics Conference) (with Vedat Diker and Seçkin Polat, Editors), Boğaziçi University Press, İstanbul, 1997.
• “Formal Aspects of Model Validity and Validation in System Dynamics”, System Dynamics Review, Vol.12, No.3, 1996, pp.183-210.
• “Academics of System Dynamics: Its Core Definition, Topics and Terminology” System Dynamics: An Int. J. of Policy Modeling, Vol.7, No.1, 1995, pp.1-15.
• “Effects of Patch Connectivity and Arrangement on Animal Metapopulation Dynamics: A Simulation Study”(with Jianguo Wu and John L. Vankat), Ecological Modeling, 1993, Vol.65, No.3-4, pp.221-254.
• "Comments on 'On the very idea of a system dynamics model of Kuhnian science'" System Dynamics Review, Vol.8, No.1, 1992.
• "An Autocorrelation Test for Output Validation", SIMULATION, Vol.55, No.1, 1990, pp.7-16.
• "Philosophical Roots of Model Validation: Two Paradigms" (with Stanley Carpenter), System Dynamics Review, Vol.6, No.2, 1990, pp.148-166.
• "System Dynamics Methodology for Natural Forest Management: An Application to Wildlife and Fish Resource Management" (with Willard R. Fey), Forest Resources Systems Institute, COMPILER, Vol.7, No.4, 1989, pp.4-19.
• "System Dynamics Methodology for Natural Forest Management: An Overview and General Guidelines" (with Willard R. Fey), Forest Resources Systems Institute, COMPILER, Vol.7, No.3, 1989, pp.4-16.
• "Multiple Tests for Validation of System Dynamics Type of Simulation Models", European Journal of Operations Research, Vol.42, No.1, 1989, pp.59-87.
• "Tests of Model Behavior That Can Detect Structural Flaws: Demonstration with Simulation Experiments", in Computer-Based Management of Complex Systems (P. M. Milling and E. O. K. Zahn, eds.), 1989, pp.246-254.
• "A System Dynamics Model of Population Growth and Regulation" (with J. Wu), Bulletin of the Ecological Society of America, Vol.69, 1988, pp. 348-349 (ABSTRACT).

OTHER PUBLICATIONS
>• Hekimoğlu, Mustafa and Barlas Y. 2010. Sensitivity analysis of system dynamics models by behavior pattern measures. Proceedings of 28th International system dynamics conference. (CD). Seoul, Korea, 2010.
• Demirezen, Emre and Barlas Y. 2009. A simulation model for blood cholesterol dynamics and related disorders. Proceedings of 27th International system dynamics conference. (CD). Albany, NY, USA, 2009.
• Özbaş, B., O. Özgün and Y. Barlas. 2008. Sensitivity analysis of real estate price oscillations model. Proceedings of 26th international system dynamics conference. (CD). Albany, NY, USA, July 2008.
• Barlas Y. and E. Dalkıran. 2008. Testing dynamic decision making under real-time pressure: A scuba diving simulator. Proceedings of 26th International system dynamics conference. (CD). Albany, NY, USA, July 2008.
• Özbaş, B., O. Özgün and Y. Barlas. Modeling of real estate price oscillations in Istanbul. Proceedings of 25th international system dynamics conference. (CD). Albany, NY, USA, July 2007.
• Yücel, G. and Y. Barlas. Pattern-based system design and optimization. Proceedings of 25th international system dynamics conference. (CD). Albany, NY, USA, July 2007.
• Y. Barlas, Suat Boğ., Automated dynamic pattern testing, parameter calibration and policy improvement. Proceedings of international system dynamics conference. (CD). Albany, NY, USA, July 2005.
• Y. Barlas, Hakan Yaşarcan., Stable stock management heuristics when the outflow is proportional to the control stock. Proceedings of international system dynamics conference. (CD). Albany, NY, USA, July 2005.
• A.K. Saysel, Y. Barlas. “Model simplification and Validation: Illustration with Indirect structure tests”. Proceedings of international system dynamics conference, Oxford, England, 2004.
• H. Yasarcan, Y. Barlas. “A generalized stock control formulation for stock management problems involving composite delays and secondary stocks”. Proceedings of the 22nd International System Dynamics Conference, Oxford, England, 2004.
• “Information sharing to reduce fluctuations in supply Chains" (with Gündüz B.), Proceedings of the 21st International System Dynamics Conference, New York, USA, 2003.
• Y. Barlas. “System dynamics and systems thinking for educational issues.” Nordic Conference on Decision Support, Luebeck, Germany, 2003
• “A general stock control formulation for stock management problems involving delays and secondary stocks” (with Yaşarcan H.), Proceedings of the 21st International System Dynamics Conference, New York, 2003.
• “Dynamic Analysis of the Viability of Alternative Energy Sources in Meeting the Electricity Demand” (with E. Özdemir and Atilla Öner). Proceedings of the 20th International System Dynamics Conference, Palermo, Italy, 2002, pp. 112.
• "Testing the decision rules used in stock management models” (with M.G. Özevin), Proceedings of the 19th International System Dynamics Conference, Atlanta, 2001. (Full paper on CD and also at: http://www.ie.boun.edu.tr/~barlas/resume.html).
•"A method for finding the equilibrium points of a nonlinear dynamic model” (with H. Yaşarcan), Proceedings of the 19th International System Dynamics Conference, Atlanta, 2001, pp. 33.
•" Modeling a Wetland through Sustainable Development: Uluabat Lake" (with B. Güneralp), Proceedings of the 19th International System Dynamics Conference, Atlanta, 2001, pp. 73-74.
• "A Dynamic Pattern-oriented Test for Model Validation" (with K. Kanar), Proceedings of 4th Systems Science European Congress, Valencia, Spain, Sept. 1999, pp. 269-286
• "Systemic Modeling of a Wetland for Sustainable Development" (with B. Güneralp), Proceedings of 4th Systems Science European Congress, Valencia, Spain, Sept. 1999, pp. 541-550
• "Long-term Comprehensive Environmental Analysis of GAP: A System Dynamics Approach" (with A.K. Saysel), Proceedings of The Kriton Curi International Symposium on Environmental Management in the Mediterranean Region, Boğaziçi University Publications, İstanbul, June 1998, pp. 223-232,
• President's address, 16th International System Dynamics Conference, Quebec City, Canada, July 1998, in President's Newsletter , Vol.11, December 1998.
• "A Dynamic Feedback Model for Strategic Management of an Insurance Company" (with E. Duman, E. Balıbek, A. Fırat), Proceedings of the 15th International System Dynamics Conference, İstanbul, 1997, pp. 685 - 688
• "System Dynamics Approach to Problem Solving in an Insurance Company" (with E. Duman, K. Çırak ve G. Uzunosmanoğlu), Proceedings of the 15th International System Dynamics Conference, İstanbul, 1997, pp. 689 - 692
• "A Behavior Validity Testing Software (BTS)" (with H. Topaloğlu ve S. Yılankaya), Proceedings of the 15th International System Dynamics Conference, İstanbul, 1997.
• "A Dynamic Model for Quick Response Strategies in Supply Chain Management", (with A. Aksoğan), Proceedings of the SCS Simulation MultiConference, Atlanta, USA, 1997.
• “Decision Support For Strategic University Management: A Dynamic Interactive Game” (with Vedat Diker), Proceedings of the International System Dynamics Conference, Boston, USA, 1996, pp. 47-50.
• “Product Diversification and Quick Response Order Strategies in Supply Chain Management” (with Ayşe Aksoğan), Proceedings of the International System Dynamics Conference, Boston, USA, 1996, pp. 51-54.
• “An Interactive Dynamic Simulation Model of University Management System” (with Vedat Diker) Proceedings of Symposium on Applied Computing '96, Philadelphia, Pennsylvania, 1996, pp. 120-128.
• “Simulation and Dynamic Analysis of Alternative Quality Management Systems” (with Aslı Özgökmen) Proceedings of The Ninth World Productivity Congress, Istanbul, 1995, pp.1533-57.
• “Fundamental Aspects and Tests of Model Validity in Simulation”, Proceedings of SMC Simulation Multiconference, Phoenix, Arizona, 1995, pp.488-493.
• “Output Behavior Validation in System Dynamics” (with Aslı Erdem), Proceedings of the European Simulation Symposium, 1994, Vol.1, pp. 1-4.
• “Partial Mathematical Analysis of Non-linear Simulation Models of Socio-economic Systems” (with Hakan Çivi and Aslı Özgökmen), Proceedings of the European Simulation Symposium,1994, Vol.1, pp. 205-209.
• “Model Validation in System Dynamics” Proceedings of the International System Dynamics Conference, Stirling, Scotland, 1994, Methodological Issues vol., pp.1-10.
• “Defining System Dynamics Education” Proceedings of the International System Dynamics Conference, Stirling, Scotland, 1994, Education vol., pp. 1-9.
• “Formal System Dynamics Education in Universities” Proceedings of the International System Dynamics Conference, Cancun, Mexico, 1993, pp.642-649.
• "An Interactive Simulation Game for Software Project Management" (with I. Bayraktutar), Proceedings of the International System Dynamics Conference, Utrecht, The Netherlands, 1992, pp.59-68.
• "Interactive Dynamic Simulation Games: An Application in Software Project Management" (with I. Bayraktutar), Proceedings of Advances in Simulation '92, Istanbul, Turkey, 1992, pp.197-208.
• "Modeling Patchy Ecological Systems Using System Dynamics Approach" (with Jianguo Wu and John Vankat), Proceedings of the International System Dynamics Conference, 1990, pp.1355-1369.
• "Simulating the Dynamics of Natural Populations Using the System Dynamics Approach"(with Jianguo Wu), Proceedings of the SCS Western Multiconference (System Dynamics Volume), 1989, pp. 6-11.
• "A Fundamental Philosophy of Science Question and Validation of System Dynamics Models" (with Stanley Carpenter), Proceedings of the International System Dynamics Conference, Shanghai, 1987, pp. 896-914.
• "Comparing the Observed and Model-generated Behavior Patterns to Validate System Dynamics Models", Proceedings of the International System Dynamics Conference, Keystone, Colorado, 1985, pp. 32-47.

SELECTED INVITED PRESENTATIONS AND SEMINARS:
• Model validity, quality and improvement. ISDC PhD Colloquium invited talk, Nijmegen, Netherlands, July 2006.
• Model validity, testing and analysis. European System Dynamics Workshop, Nijmegen, Netherlands, April 2005.
• System dynamics and systems thinking for educational issues. Nordic Conference on Decision Support, Luebeck, Germany, October 2003.
• Testing the Basic Stock Management Decision Rules and Alternative Formulations, European System Dynamics Workshop, Mannheim, Germany, March 2003.
• Introduction to System Dynamics, KHO (Military Academy), Ankara, 2000.
• Seminar on Model Validation, Norwegian Defense Research Est., Oslo, Norway, 2000.
• Seminar on Model Quality and Evaluation, University of St. Gallen, April 1999, Switzerland.
• System Dynamics Models and Games in Higher-education Management Decision Making, Royal Society, London, UK, June 1999.
• “Dynamic Pattern-Oriented Behavior Tests for Model Validation”, University of Tilburg, Center for Economic Research, Netherlands, October, 1998.
• President's address, 16th International System Dynamics Conference, Quebec City, Canada, July 1998.
• “System Dynamics Applications in Educational Systems”, State University of New York at Albany, Rockefeller College, Albany, New York, USA, February 1998.
• “Systems Thinking, Dynamic Modelling and Applications in Education Systems”, Georgia Institute of Technology, School of Industrial & Systems Engineering, Atlanta, Georgia, USA, April 1997.
• “Fundamental Aspects of Model Validation in Simulation Modeling”, University of Tilburg, Center for Economic Research, Netherlands, August 1996.
• “Evaluation of Complex Dynamic Models”, Brooks Air Force Base, Armstrong Laboratory, Texas, USA, August 1996.
• “Model Validation and Instructional Systems Project Management Models”, University of Minnesota, Minneapolis, USA, July 1996.
• “Formal Logic and Aspects of Model Validation”, Massachusetts Institute of Technology, Boston, MA, USA, 1996.
• “Computer Simulation for Total Quality Management” (in Turkish), Anadolu Üniversitesi İletişim Fakültesi, Eskişehir, 1995.
• “Systems Thinking in Management” (in Turkish), Anadolu Üniversitesi Fen Bilimleri Enstitüsü, Eskişehir, 1995.
• “Systems Theory and Management Science” (Panel in Turkish), Kara Harp Okulu, Ankara, 1995.
• “Validation and Model Validity in System Dynamics”, University of Bergen, Norway, 1995.
• “Systems Approach, Computer Simulation and Their Application in Management” (in Turkish), SIEMENS/SIMKO Seminerleri, İstanbul, 1995.
• “Philosophy of Science and Systems Theory” (in Turkish), Çapa Tıp Fakültesi Felsefe Toplantıları, İstanbul, 1994.
• “System Dynamics Methodology and Participatory Computer Simulation”, United Nations-TOKTEN Seminars, Boğaziçi Üniversitesi and ITU, İstanbul, 1992.

CONFERENCE, SYMPOSIUM, MEETING PARTICIPATION:
• International System Dynamics Conference, Oxford, England, July 2004.
• Nordic Conference on Decision Support, Luebeck, Germany, October 2003.
• EURO/INFORMS Joint Conference, Istanbul, Turkey, July 2003.
• European System Dynamics Workshop, Mannheim, Germany, March 2003.
• International System Dynamics Conference, Palermo, Italy, July 2002.
• International System Dynamics Conference, Atlanta, USA, July 2001
• International System Dynamics Conference, Bergen, Norway, July 2000.
• 4th Systems Science European Conference, Valencia, Spain, September 1999.
• System Dynamics in Higher-education Management Decision Making, Royal Society, London, June 1999.
• International System Dynamics Conference, Quebec City, Canada, July 199.8
• International System Dynamics Conference, İstanbul, Turkey, August 1997.
• SCS Simulation MultiConference, Atlanta, Georgia, April, 1997.
• Mini-Symposium on Model Validity and Validation, University of Tilburg, Center for Economic Research, Netherlands, August 1996
• International System Dynamics Conference, Boston, USA, July 1996
• ACM Computing Week '96 - Symposium on Applied Computing, Philadelphia, Pennsylvania, February 1996.
• 4th National Conference on Quality (in Turkish), İstanbul, 1995.
• İstanbul Water Conference '95 (in Turkish), İstanbul, 1995.
• The Ninth World Productivity Congress, Istanbul, 1995.
• Non-linear Oscillations and Solution Methods, Boğaziçi Üniversitesi, İstanbul, 1995
• Academic Computing In Macintosh Environment '95 (in Turkish), Akdeniz Üniversitesi, Antalya, 1995.
• Simulation Multiconference'95, Phoenix, Arizona, 1995.
• 1st Systems Engineering and Defense Applications Symposium (in Turkish), Kara Harp Okulu, Ankara, 1995.
• Dynamic Systems Symposium (in Turkish), Bursa, 1994.
• European Simulation Symposium, İstanbul, 1994.
• TIMS/ORSA Joint National Meeting, Boston, 1994.
• International System Dynamics Conference, Stirling, Scotland, UK, 1994.
• International System Dynamics Conference, Cancun, Mexico, 1993.
• 7th Canadian Symposium on Instructional Technology, Montreal, Canada, 1992.
• International System Dynamics Conference, Utrecht, Hollanda, 1992.
• Advances in Simulation'92, Boğaziçi University, Istanbul, 1992.
• TIMS/ORSA Joint National Meeting, Las Vegas, 1990.
• Discussion Workshop on R.J. Light's Harvard Assessment Report, Miami University, Oxford, Ohio, 1990.
• International System Dynamics Conference, Boston, 1990.
• Masters' Teacher's Seminar, Boston, 1990.
• Conference on Fractals and Chaos in Natural and Social Sciences, Miami University, Oxford, Ohio, 1989.
• International System Dynamics Conference, Stuttgart, Germany, 1989.
• Miami University Research Forum, Oxford, Ohio 1989.
• SCS Western Multiconference, San Diego, California, 1989.
• Annual Lilly Conference on College Teaching, Miami University, Ohio, 1988.
• SIAM Annual Conference, Minneapolis, Minnesota, 1988.
• SIAM Short Course: Nonlinear Dynamics, Chaos & Bifurcations. Minneapolis 1988
• Research Grant Proposal Development Workshop, Miami University, Ohio, 1987.
• International System Dynamics Conference, Shanghai, China, 1987.
• International System Dynamics Conference, Keystone, Colorado, 1985.
• International System Dynamics Conference, Boston, 1983.

SERVICE ACTIVITIES
Boğaziçi University:
Chair, Continuing Education Committee, 1993 -1994.
University Recruitment Committee, 1993 - 1994.
Departmental Undergraduate Coordinator, 1993 - present.
University Library Committee, 1994 - present.
University Strategic Planning Committee, 1996 - 2001
University Ethics Committee, 2002- present
Engineering Faculty Board, 2003 - present

Miami University:
Chair, Governance Committee, 1990-1992.
Chair, Research Committee, 1986-1987.
Member in various committees, including Graduate Committee, Curriculum Committee, Research Committee, Committee for Improvement of Instruction, and Harrison Scholars Selection Committee.

Last Updated: September 2011