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  Journal Papers/Book Chapters  
x Demirors, O., Gencel, C., "Conceptual Association of Functional Size Measurement Methods" , IEEE Software, vol. 26, no. 3, pp. 71-78, May/June 2009, doi:10.1109/MS.2009.60, ISSN:0740-7459  
Guceglioglu, A.S., Demirors, O., PQMM: A New Model to Measure Business Process Quality, Future Strategies, BPM and Workflow Handbook 2008, Digital Edition v2, pp. 139-154, Spotlight on Human-Centric BPM, Workflow Management Coalition (WfMC), ISBN: 978-9777527-7-5.  
Gencel, C., Demirors, O., “Functional Size Measurement Revisited”, ACM Transactions on Software Engineering and Methodology, vol. 17, no. 15, July 2008. ISSN: 1049-331X  
Turetken, O. & Demirors, O. "Process Modeling by Process Owners", Software Process: Improvement and Practice. Vol.13, Iss.1, Wiley InterScience, 2008.  
Gencel, C., Buglione, L., “Do Base Functional Component Types Affect the Relationship between Software Functional Size and Effort?” LNCS, Springer Verlag, selected papers of the Intern. Conf. on Software Process and Product Measurement (IWSM-Mensura 2007), 5-8 November 2007, Palma de Mallorca, Spain, pp.235-246.  
  Tarhan A., Demirors O., "Assessment of Software Process and Metrics to Support Quantitative Understanding”. LNCS, Springer Verlag, selected papers of the Intern. Conf. on Software Process and Product Measurement (IWSM-Mensura 2007), 5-8 November 2007, Palma de Mallorca, Spain.  
Turetken, O. & Demirors, O. "An Approach for Decentralized Process Modeling", Lecture Notes in Computer Science (LNCS) 4470, pp. 195-207,  Springer Berlin / Heidelberg. (Selected papers of International Conference on Software Process-ICSP2007, Minneapolis, USA), 2007.  
Tarhan A., Gencel C., Demirors O., “Pre-Contract Challenges: Two Large System Acquisition Experiences”, Book chapter in Enterprise Architecture and Integration: Methods, Implementation and Technologies, IGI Global, 2007.  
Tarhan A., Gencel C., Demirors O., “Pre-Contract Challenges: Two Large System Acquisition Experiences”, Book chapter in Enterprise Architecture and Integration: Methods, Implementation and Technologies, IGI Global, 2007.  
Tarhan A., Demirörs, O. "Investigating Suitability of Software Process and Metrics for Statistical Process Control" Lecture Notes in Computer Science (LNCS) 4257, pp. 88-99,  Springer Berlin / Heidelberg. (Selected papers of EuroSPI 2006, Joensuu, Finland), 2006.  
Sargut, U. & O. Demirörs, O. "Utilization of Statistical Process Control in Emergent Software Organizations: Pitfalls and Suggestions",Software Quality Journal, 14, p.135-157, 2006  
Guceglioglu, S., and  Demirors O., “A Process Based Model for Measuring Process Quality Attributes”, Lecture Notes in Computer Science 3792: 118-129, Springer Verlag,  Software Process Improvement, November 2005.  
Guceglioglu, S., and  Demirors O., “Using Software Quality Characteristics to Measure Business Process Quality”, Lecture Notes in Computer Science, LNCS 3649, s.374-379, Springer Verlag,  Business Process Management, September 2005.  
Guceglioglu, S., and  Demirors O., “Using Software Quality Characteristics to Measure Business Process Quality”, Lecture Notes in Computer Science, LNCS 3649, s.374-379, Springer Verlag,  Business Process Management, September 2005.  
Sargut, U., and Demirors O., “Utilization of Defect Density Metric for SPC Analysis”,  Software Quality, ASQ, 2005.  
Turetken, O. & Demirors, O. "People Capability Maturity Model and Human Resource Management Systems: Do they benefit each other?" Human Systems Management, Vol 23, Iss. 3 , 179-190, 2004.  
Demirors, O. & Cigdem Gencel, C. "A Comparison of Size Estimation Techniques Applied Early in the Life Cycle",Lecture Notes in Computer Science (LNCS) 3281, pp. 184-194,  Springer Berlin / Heidelberg. (Selected papers of EuroSPI 2004, Trondheim, Norway), 2004.  
Demirors, O., Tarhan, A., Demirors, E. (2001). Managing Instructional Software Acquisition.Software Process Improvement and Practice, p.189-203, Wiley InterScience  
Demirörs, E.,, Demirörs, O.,, Dikenelli, O., and Keskin, B., Process Improvement Towards ISO 9001 Certification in a Small Software Organisation, in Software Process Improvement [Eds. Robin B. Hunter, Richard H. Thayer], Wiley, 2001.  
Demirörs, E., Demirörs, O., Dikenelli, O., and Keskin, B., "Process Improvement Towards ISO 9001 Certification in a Small Software Organisation" Software Process Improvement [Eds. Robin B. Hunter, Richard H. Thayer], Wiley, 2001.  
Demirörs, O., Demirörs, E., "Software Process Improvement in Small Organizations", Lecture Notes in Computer Science, Springer Verlag, European Workshop on Software Process Technology, 1998.  
     
  Conference Papers (International)

 
xx Ozcan Top, O., & Demirors, O. & Turetken, O. (2009) "Making Functional Similarity Count for More Reliable Effort Prediction Models", Accepted to be presented at ISCIS, September 14-16, 2009, Borthern Cyprus Ulusal Konferans Makalaleri  
xx Yildiz, O., Demirors, O., “Adopting Software Quality Measures for Healthcare Processes”, in Proc. of the 12nd International Conference of the European Federation for Medical Informatics, MIE 2009, August 30 - September 2 in Sarajevo, Bosna.  
xx Ozcan Top, O., & Demirors, O. & Ozkan, B. (2009) "Reliability of COSMIC Functional Size Measurement Results: A Multiple Case Study on Industry Cases", Accepted to be presented at 35. EUROMICRO Conference, Software Engineering Advances and Applications (SEAA), Patras, Greece, 27-29 August 2009  
xx Akman, B., Demirors, O., Applicability of Process Discovery Algorithms for Software Organizations, Accepted to be presented at 35. EUROMICRO Conference, Software Engineering Advances and Applications (SEAA), Patras, Greece, 27-29 August 2009  
Ozkan, B., Turetken, O. & Demirors, O. (2008). “Software Functional Size: For Cost Estimation and More”. R.V. O’Connor et al. (Eds.): EuroSPI 2008, CCIS 16, pp. 59–69, Springer-Verlag Berlin Heidelberg  
Banu Aysolmaz Bozlu, A Conceptual Modeling Methodology: From Conceptual Model to Design, 2008 International Simulation Multi-Conference, Edinburgh, Scotland, 16-19 June 2008  
Turetken, O., Ozcan Top, O., Ozkan, B., Demirors, O. (2008). “The Impact of Individual Assumptions on Functional Size Measurement”. R. Dumke et al. (Eds.): IWSM / MetriKon / Mensura 2008, LNCS 5338, pp. 164–178. Springer Berlin Heidelberg  
Ozcan Top, O., Tunalilar, S., & Demirors, O. (2008) "Evaluation of the Effect of Functional Similarities on Development Effort" Procedings of the 34th EUROMICRO Conference on Software Engineering and Advanced Applications (SEAA), IEEE CS Press, (pp419-426), 3-5 Septermber 2008 in Parma, Italy.  
Türetken, O., Demirors,O.,Gencel, C.,Özkan,B.,Özcan Top,Ö. The Effect of Entity Generalization on Software Functional Sizing: A Case Study. PROFES 2008: 105-116  
Gencel, C., Demirors, O., “Conceptual Differences Among Functional Size Measurement Methods”, in Proc. of the 1st International Symposium on Empirical Software Engineering and Measurement (ESEM'07), IEEE CS Press, Sept 20-21, Madrid, Spain.  
Demirors, O., Karagöz, A., Gencel, C., “Acquiring Innovative Software Systems: Experiences from the Field”, in Proc. of the 33rd EUROMICRO Conference SEAA 2007, IEEE CS Press, August 28 - 31 in Luebeck, Germany.  

Yildiz, O., Demirors, O. "Applicability of ISO 9126 to Healthcare“, Medical Informatics'07, Nov. 15-18 Antalya, Turkiye.

  

Kirbas, S., Tarhan, A., Demirors, O. "An Assessment and Analysis Tool for Statistical Process Control of Software Processes”. SPICE Conference, 2007, Soeul.

  

Karagoz, A., Demirors, O. "Developing conceptual Models of the Mission Space (CMMS) – A Metamodel Based Approach". Simulation Interoperability Workshop 07, March 25-30, Norfolk, USA.

  
Ergun, A. and Gencel, C., “Utilizing Functional Size Measurement Methods for Embedded Systems”, to be published in the Proc. of the 14th Asia-Pacific Software Engineering Conf. - Workshop on Software Productivity Analysis and Cost Estimation (SPACE'07), 3-4 December 2007.  
Efe, P. Demirors, O., Gencel, C., “A Unification Model for Functional Size Measurement Methods”, in Proc. of the Joint Conf. 16th Intern. Workshop on Software Measurement (IWSM2006) - DASMA Metrik Kongress (MetriKon2006), November 2-3, 2006, Potsdam (Germany).  
Demirors, O., Gencel, C., Tarhan A., “Challenges of Acquisition Planning”, in Proc. of 32nd Euromicro Conference on Software Engineering and Advanced Applications (SEAA) (EUROMICRO 2006), IEEE CS Press, 29 August-1 September 2006, Cavtat/Dubrovnik (Croatia).  
Gencel, C., Buglione, L., Demirors, O., Efe, P. “A Case Study on the Evaluation of COSMIC-FFP and Use Case Points”, In Proc. of 3rd Software Measurement European Forum (SMEF 2006), 10-12 May 2006, Rome (Italy).  
Buglione, L., Gencel, C., Efe, P., “Suggestions for Improving Measurement Plans: a BMP application in Turkey", in Proc. of the Joint Conf. 16th Intern. Workshop on Software Measurement (IWSM2006) - DASMA Metrik Kongress (MetriKon2006), November 2-3, 2006, Potsdam (Germany).  
Atak,O. and Gencel, C., “An Experimental Study on Conceptual Data Model Based Software Code Size Estimation”, in Proc. of the Joint Conf. 16th Intern. Workshop on Software Measurement (IWSM2006) - DASMA Metrik Kongress (MetriKon2006), November 2-3, 2006, Potsdam (Germany).  
Turetken, O. & Demirors, O. "Concurrent Software Process Modeling", Proceedings of European Software Process Improvement and Innovation Conference (EUROSPI). Budapest, Hungary, 2005.  
Gencel, C., Demirors, O., Yüceer, E., "Utilizing Functional Size Measurement Methods for Real Time Software Systems", 11th IEEE International Software Metrics Symposium (METRICS 2005), Como, Italy, September 2005.  
Gencel, C., Demirors, O., Yüceer, E., "A Case Study on Using Functional Size Measurement Methods for Real Time Systems", in Proc. of 15th Intern. Workshop on Software Measurement (IWSM'2005), Shaker-Verlag , 2005, pp.159-178.  
Guceglioglu, A.S., Demirors, O. (2005). Using Software Quality Characteristics to Measure Business Process Quality, Business Process Management 3rd International Conference, BPM 2005, Nancy, France, September 5-8, Proceedings Series: Lecture Notes in Computer Science, Vol. 3649 ISBN: 3-540-28238-6.  
GGuceglioglu, A.S., Demirors, O. (2005). A Process Based Model for Measuring Process Quality Attributes, 12th European Conference, EuroSPI 2005, Budapest, Hungary, November 9-11, Proceedings Series: Lecture Notes in Computer Science, Vol. 3792 ISBN: 3-540-30286-7.  
Gencel, C. and Demirors, O., "Software Size Estimation: Difficulties and Suggestions", in Proc. of the First Conference on the Principles of Software Engineering (PriSe 2004). Buenos Aires, Argentina, November 22 - 27, 2004.  
Sargut, U., and Demirors, O., "Utilization of SPC in Emergent Software Organizations: Pitfalls and Suggestions (presentation)", EUROPEAN SEPG'04, London, England, 2004.  
Turetken, O., Su, O. & Demirors, O. "Automating Software Requirements Generation from Business Process Models", Proceedings of the First Conference on the PRInciples of Software Engineering (PRISE'04). Buenos Aires, Argentina, 2004.  
Tanriover, O., and Demirors, O., An Assessment Approach for Software Workforce in an Emergent Organization, EuroSPI 2003 Conference, Proc. of European Software Process Improvement Conference, Graz, Avusturya, 2003.  
Sargut, U., and Demirors, O., Utilization of Defect Density Metric for SPC Analysis, 13th International Conference on Software Quality, Dallas, Texas, USA, 2003.  
Demirors, O., Gencel, C. Tarhan, A., "Utilizing Business Process Models for Requirements Elicitation", in Proc. of 29th Euromicro Conference (EUROMICRO 2003), IEEE CS Press; pp. 409-412, 2003.  
Yanbas, E., and Demirors, O., A Web-Based Review System And Its Usability In a  Small Software Organızation, 21st IASTED International Conference on Applied Informatics, Insbruck, Austria, 2003.  
Demirors, O., and Demirors, E., Moving to CMMI Level 3 in a Small ISO 9001:2000 Compliant Organization (presentation), SEI-SEPG 2002, Phoenix, USA.  
Yildiz, O., and Demirors, O., Software Maintenance Process Capability of Public Organizations: A Multiple Case Study, SPICE 2002 Conference, Venice, Italy from 14 – 15 March 2002.  
Turetken, O. & Demirors, O. "Using Human Resource Management Suites To Exploit Team Process Improvement Models. Proceedings of 28th Euromicro Conference, Software Process and Product Improvement Track (pp. 382-388). Dortmund, Germany: IEEE Computer Society, 2002.  
Demirors, O., and Demirors, E., CMM in the Context of of ISO 9001:2000 (presentation), SEI-SEPG 2001, New Orleans, USA.  
Demirors, O., Guceglioglu, A.S. (2001). Application of Poor Quality Indicator Model in an Emergent Software Organization, 27th EUROMICRO Conference, September, pp. 225.  
Guceglioglu, S., and  Demirors O., Application of Poor Quality Indicator Model in an Emergent Organization, 27th EUROMICRO Conference, Workshop on Software Process and Product Improvement, IEEE Computer Society Press, 2001.  
Demirors, O., and Demirors, E., Evaluation of Small Software Companies for Large Contracts, EuroSPI 2000 Conference, Proc. of European Software Process Improvement Conference, 2000.  
Demirors, O., Guceglioglu, S., Yildiz, O., Using Cost of Quality for Software Process Improvement, 26th EUROMICRO Conference Workshop on Software Process and Product Improvement, IEEE Computer Society Press, 2000.  
Demirörs, O., Demirörs, E., Tarhan, A., and Yıldız, A., “Tailoring ISO/IEC 12207 for Instructional Software Development”, Euromicro, p. 2300, Proceedings of The 26th EUROMICRO Conference (EUROMICRO'00)-Volume 2, 2000.  
Demirors, O., Yildiz, O., Guceglioglu, A.S. (2000). Using Cost of Software Quality for a Process Improvement Initiative, 26th EUROMICRO Conference, Volume 2, September, pp. 2286.  
Tarhan, A., Demirörs, O., and Demirörs, E., “A Distributed Tool for Commitment Specification and Management”, EUROMICRO, p. 2210, Proceedings of The 25th Euromicro Conference (EUROMICRO'99)-Volume 2, 1999.  
     
  Technical Reports  
xx Ozcan Top, O, Demirors, O. (2009): Assessment of the Reliability of COSMIC FSM Results, METU II. Technical Report METU/II-TR-2009-17. Middle East Technical University, Informatics Institute.  
Turetken, O. (2008): Mapping IFPUG & COSMIC FSM Terminologies to ER Concepts , METU II. Technical Report METU/II-TR-2008-22. Middle East Technical University, Informatics Institute.  
Turetken, O. (2007): Decentralized Business Process Modeling: A Case Study in the Department of Information Systems, METU II. Technical Report METU/II-TR-2007-10. Middle East Technical University, Informatics Institute.  
Banu Aysolmaz Bozlu: Conceptual Model of a Synthetic Environment Simulation System Developed Using Extended KAMA Methodology , METU II. Technical Report METU/II-TR-2007-17. Middle East Technical University, Informatics Institute.  
Turetken, O. (2007): Decentralized Business Process Modeling: A Case Study in a Small Software Organization. Technical Report METU/II-TR-2007-11. Middle East Technical University, Informatics Institute.  
Guceglioglu, A.S., Demirors, O. (2006):A Case Study for Measuring Process Quality Attributes.. Technical Report METU/II-TR-2006-29. Middle East Technical University, Informatics Institute.  
Demirors, O., Guceglioglu, A.S. (2005):. A Model for Using Software Quality Characteristic to Measure Business Process Quality. Technical Report METU/II-TR-2005-08. Middle East Technical University, Informatics Institute.  
Turetken, O. & Demirors, O.: (2002) People Capability Maturity Model and Oracle Human Resource Management System: A Mapping, Technical Report METU/II-TR-002. Middle East Technical University, Informatics Institute.  
Demirors, O., and Demirors, E., (1997), BİLTEN Software Development Models: Object Model (BNB), TUBİTAK-BILTEN Yazılım Kalite Temini Grubu.  
     
  National  
xx Ozcan Top, O., Demirors, O. (2009) "COSMIC İşlevsel Büyüklük Ölçüm Sonuçlarının Güvenilirliği" Ulusal Yazılım Mühendisliği Sempozyumu, İstanbul , 8-10 Ekim 2009  
Ozcan Top, O., Tunalilar, S., & Demirors, O. (2008). "Fonksiyonel Benzerlik ve İş Gücü: Bir Durum Çalışması" Presented at Yazılım Kalitesi ve Yazılım Geliştirme Araçları Sempozyumu (National Software Quality Symposium)(YKGS 2008), 9-10 October 2008 in İstanbul  
Turetken, O., Demirors, O., Ozkan, B. (2008). “Utilizing Software Functional Size for Software Project Management”, National Software Quality Symposium (YKGS-2008).  
Banu Aysolmaz Bozlu, Usage of Conceptual Models in Design of Simulation Systems - A Case Study, SAVTEK Defence Technologies Conference, METU Ankara, 26-27 June 2008  
Turetken, O. & Demirors, O., "Dağıtık, Eşgüdümlü ve Bireysel Süreç Modelleme", Ulusal Yazılım Mühendisliği Sempozyumu. Bilkent Üniversitesi, Ankara, 2007.  
Güceglioglu, A.S., Demirörs, O., Seçkin, H. (2007). A Pre-Enactment Model to Measure Process Quality, III. National Software Engineering Symposium, UYMS’ 07, pp. 109-116, 27-30 September 2007, Ankara, Turkey, ISBN: 978-9944-89-337-4.  

Guceglioglu, S. & Demirors, O., "Uygulama Öncesinde Süreç Kalitesinin Ölçülmesi için Bir Model", Ulusal Yazılım Mühendisliği Sempozyumu. Bilkent Üniversitesi, Ankara, 2007.

  

Kirbas, S., Tarhan, A., Demirörs, O., "İstatistiksel Süreç Kontrolünün Yazılım Süreçlerine Uygulanabilirliğini Değerlendirme ve Analiz Aracı", Ulusal Yazılım Mühendisliği Sempozyumu. Bilkent Üniversitesi, Ankara, 2007.

  
Kilic, O., Say, B., Demirörs, O., "Kavramsal Modelleme Diyagramlarının Bilişsel İncelemesi", Ulusal Yazılım Mühendisliği Sempozyumu. Bilkent Üniversitesi, Ankara, 2007.  
Demirors, O., and Karagöz, A., UML Tabanlı Bir Metamodelleme Altyapısı ile Görev Uzayı Kavramsal Modeli Geliştirme, SAVUNMA TEKNOLOJILERI KONGRESI (SAVTEK 2006), Cilt 1 pp. 83-92, 29-30 June  2006, Ankara.  
Gencel C., Tarhan A., Demirors O., “Eliciting Information System Requirements From Business Process Models in the Pre-Contract Phase” (in Turkish)”, in the proceedings of 3rd Defense Technologies Congress SAVTEK 2006, 29-30 Haziran 2006, ODTÜ, Ankara, vol 1, pp. 603-612.  
Karagöz A., Demirors O., Gencel Ç, Ündeğer C., “Simülasyon Sistemlerinde Görev Uzayı Kavramsal Modeli Geliştirme: Bir Süreç Tanımı,” SAVUNMA TEKNOLOJILERI KONGRESI (SAVTEK 2006), Cilt 1 pp. 93-102, 29-30 June 2006, Ankara  
Gencel, C.,Tarhan, A., Demirörs, O., and Karagöz, A., “Sözleşme Öncesi Dönemde Sureç Modellerinden Bilgi Sistemi Gereksinimlerinin Tanımlanması”, SAVUNMA TEKNOLOJILERI KONGRESI (SAVTEK 2006), Cilt 1 pp. 603-612, 29-30 June 2006, Ankara  
Demirors, O., and Goncu, C., Kavramsal Modeller Arasında Birlikte Çalısabilirlik, SAVUNMA TEKNOLOJILERI KONGRESI (SAVTEK 2006), Cilt 2. pp 17-28, Cilt 1 pp. 603-612, 29-30 June 2006, Ankara.  
Tunalılar, S., and  Demirors, O., Yazılım Süreç İyileştirmede Başarı Faktörleri, Ulusal Yazılım Mühendsiliği Sempozyumu (UYMS’05), Ankara, 22-24 September 2005.  
Karagöz, A., and Demirors, O., Simülasyon Sistemleri Için Kavramsal Model Geliştirmeye Model Tabanlı Bir Yaklasım, USMOS05, Ankara, 2005.  
   
       
cizgi
Software Management Research Group
Middle East Technical University (METU), Informatics Institute, İnönü Bulvarı, 06531, Ankara, Turkey.
Phone: +(90 312) 210-3741 - Fax: +(90 312) 210-3745 - smrg@ii.metu.edu.tr