Magne Jørgensen

Adjunct Professor - Programming
Image of Magne Jørgensen
Norwegian version of this page
Mobile phone +47 92433355
Username
Visiting address Gaustadalléen 23B 0373 Oslo
Postal address Postboks 1080 0316 Oslo

Academic Interests

Project management, cost estimation, expert judgment, evidence-based software engineering

Teaching

INF5520

Publications

  • Jørgensen, Magne; Halkjelsvik, Torleif & Liestøl, Knut (2022). When should we (not) use the mean magnitude of relative error (MMRE) as an error measure in software development effort estimation? Information and Software Technology. ISSN 0950-5849. 143. doi: 10.1016/j.infsof.2021.106784.
  • Jørgensen, Magne & Escott, Eban (2022). Relative estimates of software development effort: Are they more accurate or less time-consuming to produce than absolute estimates, and to what extent are they person-independent? Information and Software Technology. ISSN 0950-5849. 143. doi: 10.1016/j.infsof.2021.106782.
  • Holgeid, Knut Kjetil; Jørgensen, Magne; Sjøberg, Dag & Krogstie, John (2021). Benefits management in software development: A systematic review of empirical studies. IET Software. ISSN 1751-8806. 15(1), p. 1–24. doi: 10.1049/sfw2.12007. Full text in Research Archive
  • Jørgensen, Magne; Bergersen, Gunnar R. & Liestøl, Knut (2021). Relations between Effort Estimates, Skill Indicators, and Measured Programming Skill. IEEE Transactions on Software Engineering. ISSN 0098-5589. 47(12), p. 2892–2906. doi: 10.1109/TSE.2020.2973638.
  • Halkjelsvik, Torleif & Jørgensen, Magne (2021). When 2 + 2 should be 5: The summation fallacy in time prediction. Journal of Behavioral Decision Making. ISSN 0894-3257. doi: 10.1002/bdm.2265.
  • Jørgensen, Magne; Welde, Morten & Halkjelsvik, Torleif (2021). Evaluation of Probabilistic Project Cost Estimates. IEEE transactions on engineering management. ISSN 0018-9391. doi: 10.1109/TEM.2021.3067050.
  • Holgeid, Knut Kjetil & Jørgensen, Magne (2020). Practices connected to perceived client benefits of software projects. IET Software. ISSN 1751-8806. 14(6), p. 677–683. doi: 10.1049/iet-sen.2019.0141.
  • Filkukova, Petra & Jørgensen, Magne (2020). How to pose for a professional photo: The effect of three facial expressions on perception of competence of a software developer. Australian Journal of Psychology. ISSN 0004-9530. 72(3), p. 257–266. doi: 10.1111/ajpy.12285.
  • Jørgensen, Magne & Halkjelsvik, Torleif (2019). Sequence effects in the estimation of software development effort. Journal of Systems and Software. ISSN 0164-1212. doi: 10.1016/j.jss.2019.110448.
  • Jørgensen, Magne (2019). Relationships Between Project Size, Agile Practices, and Successful Software Development: Results and Analysis. IEEE Software. ISSN 0740-7459. 36(2), p. 39–43. doi: 10.1109/MS.2018.2884863.
  • Jørgensen, Magne (2019). Evaluating probabilistic software development effort estimates: Maximizing informativeness subject to calibration. Information and Software Technology. ISSN 0950-5849. 115, p. 93–96. doi: 10.1016/j.infsof.2019.08.006.
  • Mohagheghi, Parastoo & Jørgensen, Magne (2017). What Contributes to the Success of IT Projects? An Empirical Study of IT Projects in the Norwegian Public Sector. Journal of Software. ISSN 1796-217X. 12(9), p. 751–758. doi: 10.17706/jsw.12.9.751-758.
  • Jørgensen, Magne & Yamashita, Aiko (2016). Cultural Characteristics and Their Connection to Increased Risk of Software Project Failure. Journal of Software. ISSN 1796-217X. 11(6), p. 606–614. doi: 10.17706/jsw.11.6.606-614.
  • Jørgensen, Magne (2016). Better Selection of Software Providers through Trialsourcing. IEEE Software. ISSN 0740-7459. 33(5), p. 48–53. doi: 10.1109/MS.2015.24.
  • Løhre, Erik & Jørgensen, Magne (2016). Numerical anchors and their strong effects on software development effort estimates. Journal of Systems and Software. ISSN 0164-1212. 116, p. 49–56. doi: 10.1016/j.jss.2015.03.015.
  • Jørgensen, Magne; Dybå, Tore; Liestøl, Knut & Sjøberg, Dag (2016). Incorrect results in software engineering experiments: How to improve research practices. Journal of Systems and Software. ISSN 0164-1212. 116, p. 133–145. doi: 10.1016/j.jss.2015.03.065. Full text in Research Archive
  • Jørgensen, Magne (2015). The Effect of the Time Unit on Software Development Effort Estimates. In Keshav, Dahal & Rijal, Rameshwar (Ed.), 9th International Conference on Software, Knowledge, Information Management and Applications (SKIMA) 2015. IEEE. ISSN 978-1-4673-6744-8. doi: 10.1109/SKIMA.2015.7399992.
  • Jørgensen, Magne & Papatheocharous, Efi (2015). Believing is Seeing: Confirmation Bias Studies in Software Engineering. In Matos, Jose Silva & Alves, José Carlos (Ed.), 41st Euromicro Conference on Software Engineering and Advanced Applications (SEAA) 2015. IEEE Press. ISSN 978-1-4673-7585-6. p. 92–95. doi: 10.1109/SEAA.2015.56.
  • Jørgensen, Magne (2014). What we do and don't know about software development effort estimation. IEEE Software. ISSN 0740-7459. 31(2), p. 37–40. doi: 10.1109/MS.2014.49.
  • Jørgensen, Magne (2014). Failure factors of small software projects at a global outsourcing marketplace. Journal of Systems and Software. ISSN 0164-1212. 92(1), p. 157–169. doi: 10.1016/j.jss.2014.01.034.
  • Jørgensen, Magne (2013). Relative Estimation of Software Development Effort: It Matters With What and How You Compare. IEEE Software. ISSN 0740-7459. 30(2), p. 74–79. doi: 10.1109/MS.2012.70.
  • Jørgensen, Magne (2013). The influence of selection bias on effort overruns in software development projects. Information and Software Technology. ISSN 0950-5849. 55(9), p. 1640–1650. doi: 10.1016/j.infsof.2013.03.001.
  • Jørgensen, Magne & Kitchenham, Barbara (2012). Interpretation problems related to the use of regression models to decide on economy of scale in software development. Journal of Systems and Software. ISSN 0164-1212. 85(11), p. 2494–2503. doi: 10.1016/j.jss.2012.05.068.
  • Jørgensen, Magne; Halkjelsvik, Torleif & Kitchenham, Barbara (2012). How does project size affect cost estimation error? Statistical artifacts and methodological challenges. International Journal of Project Management. ISSN 0263-7863. 30(7), p. 839–849. doi: 10.1016/j.ijproman.2012.01.007.
  • Jørgensen, Magne & Grimstad, Stein (2012). Software Development Estimation Biases: The Role of Interdependence. IEEE Transactions on Software Engineering. ISSN 0098-5589. 38(3), p. 677–693. doi: 10.1109/TSE.2011.40.
  • Halkjelsvik, Torleif & Jørgensen, Magne (2012). From Origami to Software Development: A Review of Studies on Judgment-Based Predictions of Performance Time. Psychological bulletin. ISSN 0033-2909. 138(2), p. 238–271. doi: 10.1037/a0025996.
  • Tamrakar, Ritesh & Jørgensen, Magne (2012). Does the use of Fibonacci numbers in Planning Poker affect effort estimates? In Mendes, Emilia & Genero, Marcela (Ed.), Proceedings, 16th International Conference on Evaluation and Assessment in Software Engineering. IET Research Journals . ISSN 978-1-84919-541-6. p. 228–232.
  • Jørgensen, Magne & Løhre, Erik (2012). First Impressions in Software Development Effort Estimation: Easy to Create and Difficult to Neutralize. In Baldassarre, Teresa; Genreo, Marcela; Mendes, Emilia & Piattini, Mario (Ed.), Evaluation & Assessment in Software Engineering (EASE 2012), 16th International Conference on. IET Conference Publications. ISSN 978-1-84919-541-6. p. 216–222.
  • Jørgensen, Magne (2011). Overconfidence in the accuracy of own work effort predictions: The role of interval width. In Brun, Wibecke; Keren, Gideon; Kirkebøen, Geir & Montgomery, Henry (Ed.), Perspectives on Thinking, Judging, and Decision Making. Universitetsforlaget. ISSN 9788215018782. p. 47–56.
  • Jørgensen, Magne (2011). Contrasting ideal and realistic conditions as a means to improve judgment-based software development effort estimation. Information and Software Technology. ISSN 0950-5849. 53(12), p. 1382–1390. doi: 10.1016/j.infsof.2011.07.001.
  • Halkjelsvik, Torleif; Jørgensen, Magne & Teigen, Karl Halvor (2011). To Read Two Pages, I Need 5 Minutes, but Give Me 5 Minutes and I will Read Four: How to Change Productivity Estimates by Inverting the Question. Applied Cognitive Psychology. ISSN 0888-4080. 25(2), p. 314–323. doi: 10.1002/acp.1693.
  • Jørgensen, Magne & Grimstad, Stein (2010). Software Development Effort Estimation: Demystifying and Improving Expert Estimation. In Tveito, Aslak; Bruaset, Are Magnus & Lysne, Olav (Ed.), Simula Research Laboratory - by thinking constantly about it. Springer. ISSN 978-3-642-01155-9. p. 381–404.
  • Halkjelsvik, Torleif; Jørgensen, Magne & Teigen, Karl Halvor (2010). To read two pages, I need 5 minutes, but give me 5 minutes and I will read four: how to change productivity estimates by inverting the question. Applied Cognitive Psychology. ISSN 0888-4080. doi: 10.1002/acp.1693.
  • Jørgensen, Magne (2010). Selection of strategies in judgment-based effort estimation. Journal of Systems and Software. ISSN 0164-1212. 83(6), p. 1039–1050. doi: 10.1016/j.jss.2009.12.028.
  • Jørgensen, Magne & Halkjelsvik, Torleif (2010). The effects of request formats on judgment-based effort estimation. Journal of Systems and Software. ISSN 0164-1212. 83(1), p. 29–36. doi: 10.1016/j.jss.2009.03.076.
  • Jørgensen, Magne (2010). Identification of more risks can lead to increased over-optimism of and over-confidence in software development effort estimates. Information and Software Technology. ISSN 0950-5849. 52(5), p. 506–516. doi: 10.1016/j.infsof.2009.12.002.
  • Jørgensen, Magne (2009). McGuire-programmets stammebehandling: Hva er det? Virker det? Hva kan logopeder lære fra det? Norsk tidsskrift for logopedi. ISSN 0332-7256. 55(1), p. 13–18.
  • Jørgensen, Magne & Gruschke, Tanja Milijana (2009). The Impact of Lessons-Learned Sessions on Effort Estimation and Uncertainty Assessments. IEEE Transactions on Software Engineering. ISSN 0098-5589. 35(3), p. 368–383. doi: 10.1109/TSE.2009.2.
  • Jørgensen, Magne (2009). How to Avoid Selecting Providers with Bids Based on Over-Optimistic Cost Estimates. IEEE Software. ISSN 0740-7459. 26(3), p. 79–84.
  • Jørgensen, Magne & Grimstad, Stein (2009). A Preliminary Study of Sequence Effects in Judgment-based Software Development Work- Effort Estimation. IET Software. ISSN 1751-8806. 3(5), p. 435–441.
  • Jørgensen, Magne & Boehm, Barry (2009). Software Development Effort Estimation: Formal Models or Expert Judgment? IEEE Software. ISSN 0740-7459. March/April, p. 14–19.
  • Jørgensen, Magne; Jørgensen, Magne; Grimstad, Stein & Grimstad, Stein (2008). Judgment-updating among software professionals. In Hossain, Nazmul A. N. M. & Ouzrout, Y (Ed.), Proceedings of the International Conference on Software, Knowledge, Information Management and Applications. University of Bradford, School of Informatics. ISSN 9781851432516. p. 62–67.
  • Gruschke, Tanja Milijana & Jørgensen, Magne (2008). The role of outcome feedback in improving the uncertainty assessment of software development effort estimates. ACM Transactions on Software Engineering and Methodology. ISSN 1049-331X. 17. doi: 10.1145/13487689.13487693.
  • Hannay, Jo Erskine & Jørgensen, Magne (2008). The Role of Artificial Design Elements in Software Engineering Experiments. IEEE Transactions on Software Engineering. ISSN 0098-5589. 34(2), p. 242–259.
  • Jørgensen, Magne & Grimstad, Stein (2008). How to Avoid Impact from Irrelevant and Misleading Information When Estimating Software Development Effort. IEEE Software. ISSN 0740-7459. p. 78–83. doi: 10.1109/MS.2008.57.
  • Sjøberg, Dag; Dybå, Tore & Jørgensen, Magne (2007). The Future of Empirical Methods in Software Engineering Research. In Briand, Lionel & Wolf, Alexander (Ed.), Future of Software Engineering. IEEEE-CS. ISSN 0-7695-2829-5. p. 358–378.
  • Jørgensen, Magne; Faugli, Bjørn & Gruschke, Tanja (2007). Characteristics of software engineers with optimistic prediction. Journal of Systems and Software. ISSN 0164-1212. 80(9), p. 1472–1482.
  • Jørgensen, Magne & Grimstad, Stein (2007). The Impact of Irrelevant Information on Estimates of Software Development Effort. In Grant, Doug (Eds.), The Australian Software Engineering Conference. IEEE. ISSN 0-7695-2778-7. p. 359–368.
  • Jørgensen, Magne; Faugli, Bjørn & Gruschke, Tanja Milijana (2007). Characteristics of software engineers with optimistic predictions. Journal of Systems and Software. ISSN 0164-1212. 80, p. 1472–1482. doi: 10.1016/j.jss.2006.09.047.
  • Grimstad, Stein & Jørgensen, Magne (2007). Inconsistency in Expert Judgment-based Estimates of Software Development Effort. Journal of Systems and Software. ISSN 0164-1212. 80(11), p. 1770–1777.
  • Grimstad, Stein & Jørgensen, Magne (2007). Inconsistency of expert judgment-based estimates of software development effort. Journal of Systems and Software. ISSN 0164-1212. 80, p. 1770–1777. doi: 10.1016/j.jss.2007.03.001.
  • Jørgensen, Magne & Sjøberg, Dag (2006). Expert Estimation of Software Development Work. In Madhavji, Nazim; Fernandez-Ramli, Juan & Perry, Dewayne (Ed.), Software Evolution and Feedback: Theory and Practice. IEEE Press. ISSN 0-470-87180-6. p. 523–527.
  • Jørgensen, Magne & Faugli, Bjørn (2006). Prediction of overoptimistic predictions. Electronic Workshops in Computing (eWiC). ISSN 1477-9358. p. 2–10.
  • Grimstad, Stein & Jørgensen, Magne (2006). A Framework for the Analysis of Software Cost. In Maldonado, Jose & Wohlin, Clas (Ed.), ISESE'2006 (Fifth ACM-IEEE International Symposium on Empirical Software Engineering. ACM Publications. ISSN 1-59593-218-6. p. 58–65.
  • Jørgensen, Magne; Kitchenham, Barbara & Dybå, Tore (2005). Teaching Evedence-Based Software Engineering to University Students, Software Metrics, 2005. 11th IEEE interntional symposium. IEEE conference proceedings.
  • Moløkken-Østvold, Kjetil Johan; Jørgensen, Magne; Sørgaard, Pål & Grimstad, Stein (2005). Management of Public Software Projects: Avoiding Overruns. In Burge, Andrew (Eds.), Hawaiian International Conference on Business. Hawaii International Conference on Business.
  • Jørgensen, Magne & Grimstad, Stein (2005). Over-optimism in Software Development Projects: ?The winner?s curse? In Aquino, Vicente Alarcon (Eds.), 15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05). IEEE. ISSN 07695-2283-1. p. 280–285.
  • Gruschke, Tanja Milijana & Jørgensen, Magne (2005). Assessing Uncertainty of Software Development Effort Estimates:The Learning From Outcome Feedback. In Morasca, Sandro (Eds.), 11th IEEE International Software Metrics Symposium (METRICS 2005). IEEE. ISSN 0-7695-2371-4. p. 1–10.
  • Jørgensen, Magne; Kitchenham, B. & Dybå, Tore (2005). Teaching Evidence-Based Software Engineering to University Students. In Morasca, Sandro (Eds.), 11th IEEE International Software Metrics Symposium (METRICS 2005). IEEE. ISSN 0-7695-2371-4.
  • Jørgensen, Magne (2005). The "Magic Step" of Judgment-Based Software Effort Estimation. In Kokinov, B (Eds.), International Conference on Cognitive Economics. NBU Press. ISSN 954-535-404-6. p. 105–114.
  • Jørgensen, Magne & Teigen, Karl Halvor (2005). Kan vi unngå at "så og si helt sikkert" bare betyr "60% sikkert"? Prosjektledelse. ISSN 1500-0516. p. 29–31.
  • Teigen, Karl Halvor & Jørgensen, Magne (2005). When 90% confidence intervals are 50% certain: On the credibility of credible intervals. Applied Cognitive Psychology. ISSN 0888-4080. 19, p. 455–475.
  • Moløkken, Kjetil Johan & Jørgensen, Magne (2005). Expert Estimation of Web-Development Projects: Are Software Professionals in Technical Roles More Optimistic Than Those in Non-Technical Roles? Empirical Software Engineering. ISSN 1382-3256. 10(1), p. 7–30.
  • Dybå, Tore; Kitchenham, B. & Jørgensen, Magne (2005). Evidence-based Software Engineering for Practitioners. IEEE Software. ISSN 0740-7459. 22(1), p. 58–65.
  • Jørgensen, Magne (2005). Practical guidelines for better support of expert judgement-based software effort estimation. IEEE Software. ISSN 0740-7459. 23(3), p. 57–63.
  • Karahasanovic, Amela; Anda, Bente Cecilie D; Arisholm, Erik; Hove, SE; Jørgensen, Magne & Sjøberg, Dag [Show all 7 contributors for this article] (2005). Collecting Feedback during Software Engineering Experiments. Empirical Software Engineering. ISSN 1382-3256. 10(2), p. 113–147.
  • Moløkken-Østvold, Kjetil Johan & Jørgensen, Magne (2005). A Comparison of Software Project Overruns – Flexible vs. Sequential Development Models. IEEE Transactions on Software Engineering. ISSN 0098-5589. 31(9), p. 754–766.
  • Jørgensen, Magne (2005). Evidence-Based Guidelines for Assessment of Software Development Cost Uncertainty. IEEE Transactions on Software Engineering. ISSN 0098-5589. 31(11), p. 942–954.
  • Mair, C.; Shepperd, Martin & Jørgensen, Magne (2005). An Analysis of Data Sets Used to Train and Validate Cost Prediction Systems. Software engineering notes. ISSN 0163-5948. 30(4), p. 1–6.
  • Grimstad, Stein; Jørgensen, Magne & Moløkken-Østvold, Kjetil Johan (2005). The Clients' Impact on Effort Estimation Accuracy in Software Development Projects. Proceedings of the IEEE International Software Metrics Symposium (METRICS). ISSN 1530-1435.
  • Jørgensen, Magne (2005). Practical guidelines for expert-judgement-based software effort estimation. IEEE Software. ISSN 0740-7459. 22.
  • Jørgensen, Magne & Sjøberg, Dag (2004). Generalization and Theory-Building in Software Engineering Research. In Linkman, Stephen (Eds.), Empirical Assessment in Software Engineering (EASE2004). IEEE. ISSN 0-7695-2163-0. p. 29–36.
  • Jørgensen, Magne & Moløkken-Østvold, Kjetil Johan (2004). Eliminating Over-Confidence in Software Development Effort Estimates. In Bomarius, F & Hajimu, Iida (Ed.), Product Focused Software Process Improvement(PROFES 2004). Springer. ISSN 3-540-21421-6. p. 174–184.
  • Moløkken-Østvold, Kjetil Johan; Lien, AC; Jørgensen, Magne; Tanilkan, SS; Gallis, Hans Enger & Hove, Siw Elisabeth (2004). Does Use of Development Model Affect Estimation Accuracy and Bias? In Bomarius, F & Hajimu, Iida (Ed.), Product Focused Software Process Improvement(PROFES 2004). Springer. ISSN 3-540-21421-6. p. 17–29.
  • Kitchenham, B.; Dybå, Tore & Jørgensen, Magne (2004). Evidence-based Software Engineering. In Linkman, Stephen (Eds.), Empirical Assessment in Software Engineering (EASE2004). IEEE. ISSN 0-7695-2163-0. p. 273–281.

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  • Volden, Gro Holst; Jørgensen, Magne; Holgeid, Kjetil & Berg, Helene (2021). Jakten på nytte i offentlige it-prosjekter. Stat og styring. ISSN 0803-0103. 2021(3), p. 38–41.
  • Jørgensen, Magne; Skrøvseth, Stein Olav & Storvik, Anne Grete (2020). Dette sier forskning om offentlige IT-prosjekter. [Internet]. Dagens Medisin.
  • Filkukova, Petra & Jørgensen, Magne (2014). The effect of facial expression on evaluation of competence: Keep smiling!
  • Jørgensen, Magne & Faugli, Bjørn (2006). Prediction of overoptimistic predictions.
  • Jørgensen, Magne & Faugli, Bjørn (2006). Prediction of Optimistic Expert Judgment-Based Predictions.
  • Jørgensen, Magne (2006). A Preliminary Model of Judgment-based Project Software Effort Predictions.
  • Gruschke, Tanja Milijana & Jørgensen, Magne (2006). How much does feedback and performance review improve software development effort estimation? An Empirical Study.
  • Gruschke, Tanja Milijana & Jørgensen, Magne (2006). To know or not to know: when does feedback lead to better assessment of uncertainty of own beliefs?
  • Jørgensen, Magne (2006). Software Cost Estimation: When to Use Expert Judgment and When to Use Models.
  • Grimstad, Stein & Jørgensen, Magne (2006). A Framework for the Analysis of Software Cost.
  • Teigen, Karl Halvor; Jørgensen, Magne & Halberg, Anne-Marie (2006). The strange case of subjective uncertainty intervals.
  • Jørgensen, Magne; Kitchenham, B. & Dybå, Tore (2005). Teaching Evidence-Based Software Engineering to University Students.
  • Jørgensen, Magne & Gruschke, Tanja Milijana (2005). Industrial Use of Formal Software Cost Estimation Models: Expert Estimation in Disguise.
  • Jørgensen, Magne (2005). The "Magic Step" of Judgment-Based Software Effort Estimation.
  • Gruschke, Tanja Milijana & Jørgensen, Magne (2005). Assessing Uncertainty of Software Development Effort Estimates:The Learning From Outcome Feedback.
  • Jørgensen, Magne & Grimstad, Stein (2005). Over-optimism in Software Development Projects: ?The winner?s curse?
  • Grimstad, Stein; Jørgensen, Magne & Moløkken-Østvold, Kjetil Johan (2005). The Clients' Impact on Effort Estimation Accuracy in Software Development Projects.
  • Teigen, Karl Halvor; Jørgensen, Magne & Halberg, Anne-Marie (2005). On the psychology of uncertainty intervals.
  • Moløkken-Østvold, Kjetil Johan; Jørgensen, Magne & Sørgaard, Pål (2004). Offentlig Fare. ComputerWorld Norge. ISSN 1501-6595.

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Published Nov. 4, 2010 2:00 PM - Last modified Oct. 23, 2012 2:08 PM

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