Dissertation
Valerdi, R., The Constructive Systems Engineering Cost Estimation Model (COSYSMO), University of Southern California, May 2005. [pdf]
Journal Publications
Marañón-Abreu, R., Gualda-Caballero, E., and Valerdi, R., “The Dynamics of Circular Migration in Southern Europe: An Example of Social Innovation,” Technological Forecasting and Social Change (under review).
Valerdi, R., “Convergence of Expert Opinion via the Wideband Delphi Method: An Application in Cost Estimation Models,” Technological Forecasting and Social Change (under review).
Valerdi, R., “Pioneers of Parametrics: Origins and Evolution of Software Cost Estimation,” IEEE Annals of the History of Computing (under review).
Dixit, I. and Valerdi, R., “Challenges in the Development of Systems Engineering as a Profession,” Systems Engineering (under review).
McNew, G. and Valerdi, R., “A Description and Mitigation of Acquisition Archetypes,” Acquisition Review Journal (under review).
Valerdi, R., Boehm, B. W. and Reifer, D., “Effect of Size and Cost Drivers on Systems Engineering Effort,” Systems Engineering (accepted with minor revisions).
Abdimomunova, L. and Valerdi, R., “An Organizational Assessment Process for Enterprise Transformation,” Information, Knowledge and Systems Management (in press).
Perkins, L. N., Abdimomunova, L., Valerdi, R., Shields, T. and Nightingale, D. J., “Insights from Enterprise Assessment: How to Analyze LESAT Results for Enterprise Transformation,” Information, Knowledge and Systems Management (in press).
Wang, G., Valerdi, R., Roedler, G., Ankrum, A. and Gaffney, J., “Harmonizing Software Engineering and Systems Engineering Cost Estimation,” International Journal of Computer Integrated Manufacturing (in press).
Valerdi, R. and Blackburn, C., “Leveraging Measurement Systems to Drive Enterprise Transformation,” Information, Knowledge and Systems Management (in press).
Valerdi, R. and Nightingale, D. J., “An Introduction to the Journal of Enterprise Transformation,” Journal of Enterprise Transformation, 1(1), 2011.
Purchase, V., Parry, G., Valerdi, R., Nightingale, D. J. and Mills, J., “Enterprise Transformation: Why Are We Interested, What Is It, And What Are The Challenges?,” Journal of Enterprise Transformation, 1(1), 2011.
Valerdi, R., “Heuristics for Systems Engineering Cost Estimation,” IEEE Systems Journal, 4(4), 2010.
Wang, G., Valerdi, R. and Fortune, J., “Reuse in Systems Engineering,” IEEE Systems Journal, 4(3), 376-384, 2010.
Liu, K. K., Valerdi, R., Rhodes, D. H., Headen, A. and Kimm, L., “The F119 Engine: A Success Story of Human Systems Integration in Acquisition,” Acquisition Review Journal, 17(2), 284-301, 2010.
Valerdi, R., and Boehm, B., “COSYSMO: A Systems Engineering Cost Model,” Genie Logiciel, March 2010.
Valerdi, R., Davidz, H., “Empirical Research in Systems Engineering: Challenges and Opportunities of a New Frontier,” Systems Engineering, 12(2), 2009. [doi]
Rhodes, D., Valerdi, R. and Roedler, G., “Systems Engineering Leading Indicators: Assessing Effectiveness of Programmatic and Technical Performance,” Systems Engineering, 12(1), 21-35, 2009. [doi]
Valerdi, R., Nightingale, D. J. and Blackburn, C., “Enterprises as Systems: Context, Boundaries and Practical Implications,” Information, Knowledge and Systems Management, 7(4), 377-399, 2008.
Boehm, B., Valerdi R., “Achievements and Challenges in Software Resource Estimation,” IEEE Software, 25(5), 74-83, October 2008. [doi]
Valerdi, R., Axelband, E., Baehren, T., Boehm, B., Dorenbos, D., Jackson, S., Madni, A., Nadler, J., Robitaille, P., Settles, S., “A Research Agenda for Systems of Systems Architecting,” International Journal of System of Systems Engineering, 1(1/2), 171-188, 2008. [url] [pdf]
Boehm, B., Valerdi, R., Honour, E., “The ROI of Systems Engineering: Some Quantitative Results for Software-Intensive Systems,” Systems Engineering, 11(3), 221-234, 2008. [doi]
Fong, A., Valerdi, R., Srinivasan, J., “Boundary Objects as a Framework to Understand the Role of Systems Integrators,” Systems Research Forum, 2, 11-18, 2007. [pdf]
Rhodes, D., Valerdi, R., Enabling Research Synergies Through a Doctoral Research Network in Systems Engineering, Systems Engineering, Vol. 10, No. 4, December 2007. [doi]
Lane, J., Valerdi, R., Synthesizing System-of-Systems Concepts for Use in Cost Modeling, Systems Engineering, Vol. 10, No. 4, December 2007. [doi]
Valerdi, R., Ross, A., Rhodes, D., A Framework for Evolving System of Systems Engineering, CrossTalk – The Journal of Defense Software Engineering, October 2007. [url]
Valerdi, R., Madachy, R., Impact & Contributions of MBASE on Software Engineering Graduate Courses, Journal of Systems & Software, Vol. 80, No. 8, pp. 1185-1190, August 2007. [pdf] [doi]
Boehm, B., Valerdi, R., Lane, J., Brown, A. W., COCOMO Suite Methodology and Evolution, CrossTalk – The Journal of Defense Software Engineering, April 2005. [url]
Conference Proceedings
2010
Young, L. Z., Farr, J. V., Valerdi, R. and Kwak, Y. H., “A Framework for Evaluating Life Cycle Project Management Costs on Systems Centric Projects,” 31st American Society of Engineering Management, Rogers, AR, October 2010.
Hess, J., Agarwal, G., Cowart, K., Deonandan, I., Kenley, C. R., Mikaelian, T. and Valerdi, R., “Normative and Descriptive Models for Test & Evaluation of Unmanned and Autonomous Systems of Systems,” 20th INCOSE Symposium, Chicago, IL, July 2010.
Perkins, L. N., Valerdi, R. and Nightingale, D., “Organizational Assessment Models for Enterprise Transformation,” 20th INCOSE Symposium, Chicago, IL, July 2010.
Valerdi, R. and Deonandan, I., “A Study on the Effects of Professional Society Conferences on the Growth and Prosperity of Regional Chapters and Members: The Systems Engineering Example,” 20th INCOSE Symposium, Chicago, IL, July 2010.
Dickerson, C. and Valerdi, R., “Using Relational Model Transformations to Reduce Complexity in SoS Requirements Traceability: Preliminary Investigation,” 5th IEEE International Conference on Systems of Systems Engineering, Loughborough, UK, June 2010.
Deonandan, I., Valerdi, R., Lane, J. and Macias, F., “Cost and Risk Considerations for Test and Evaluation of Unmanned and Autonomous Systems of Systems,” 5th IEEE International Conference on Systems of Systems Engineering, Loughborough, UK, June 2010.
Hess, J. and Valerdi, R., “Test and Evaluation of a SoS using a Prescriptive and Adaptive Testing Framework,” 5th IEEE International Conference on Systems of Systems Engineering, Loughborough, UK, June 2010.
Cowart, K., Valerdi, R. and Kenley, C. R., “Decision Support Systems for Test & Evaluation: Requirements and Measures of Effectiveness,” Test Week 2010, Huntsville, AL, June 2010.
Aggarwal, T., Valerdi, R., Potoski, M., “When More is Better-Design Principles for Prediction Markets in Defense Acquisition Cost Forecasting,” 7th Annual Acquisition Research Symposium, Monterey, CA, May 2010.
Valerdi, R. and Rouse, W. B., “When Systems Thinking Is Not a Natural Act,” 5th IEEE Systems Conference, San Diego, CA, April, 2010.
Lane, J. and Valerdi, R., “Accelerating System of Systems Engineering Understanding and Optimization Through Lean Enterprise Principles,” 5th IEEE Systems Conference, San Diego, CA, April, 2010.
Ferreira, S., Valerdi, R., Medvidovic, N., Hess, J., Deonandan, I., Mikaelian, T. and Shull, G., “Unmanned and Autonomous Systems of Systems Test and Evaluation: Challenges and Opportunities,” 5th IEEE Systems Conference, San Diego, CA, April, 2010.
Young, L. Z., Farr, J. V. and Valerdi, R., “The Role of Influential Complexities in Systems Engineering Cost Estimating Processes,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
Smith, E. D., Pineda, R. L., Aldous, K., and Valerdi, R., “COSYSMO and COSYSMO-R Parameter Estimation Biases,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
Madachy, R. and Valerdi, R., “Automating Systems Engineering Risk Assessment,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
Valerdi, R., Brown, S. and Muller, G., “Towards a framework of research methodology choices in Systems Engineering,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
Valerdi, R., Liu, K., Fortune, J., “Lessons Learned about Mixed Methods Research Strategies in Systems Engineering: Evidence from PhD Dissertations,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
Liu, K., Valerdi, R. and Laplante, P. A., “Better Requirements Decomposition Guidelines can Improve Cost Estimation of Systems Engineering and Human Systems Integration,” 8th Conference on Systems Engineering Research, Hoboken, NJ, March 2010.
2009
Valerdi, R. and Blackburn, C., “The Human Element of Decision Making in Systems Engineers: A Focus on Optimism,” 19th INCOSE Symposium, Singapore, July 2009.
Valerdi, R., Jain, R., Ferris, T. and Kasser, J., “An Exploration of Matching Teaching to the Learning Styles of Systems Engineering Graduate Students,” 19th INCOSE Symposium, Singapore, July 2009.
Wang, G., Shernoff, A. and Valerdi, R., “Towards a Holistic, Total Engineering Cost Model,” 19th INCOSE Symposium, Singapore, July 2009.
Wang, G., Valerdi, R., Roedler, G. J., Ankrum, A. and Gaffney, J. E., “Harmonizing Systems and Software Estimation,” 19th INCOSE Symposium, Singapore, July 2009.
Czaika, E. and Valerdi, R., “Is Different Dangerous or Curious? Are our Corporate Cultures Tuned for Innovation?” 19th INCOSE Symposium, Singapore, July 2009.
Dixit, I. and Valerdi, R., “Re-conceptualizing the Work of Systems Engineers,” 2nd International MIT Engineering Systems Symposium, Cambridge, MA, June 2009.
Rhodes, D. H., Ross, A. M., Gerst, K. and Valerdi, R., “Leading Indicators for Human Systems Integration Effectiveness,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Liu, K., Valerdi, R. and Rhodes, D. H., “Cost Drivers of Human Systems Integration: A Systems Engineering Perspective,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Gaffney, J. E., Valerdi, R. and Ross, M. A., “Approaches to Calculating Systems Engineering Schedule in Parametric Cost Models,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Blackburn, C. and Valerdi, R., “Practical Implementation of an Enterprise Measurement System: From Inception to Transformation,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Valerdi, R. and Blackburn, C., “Navigating the Metrics Landscape: An Introductory Literature Guide to Metrics Selection, Implementation and Decision Making,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Fortune, J., Valerdi, R., Boehm, B. W. and Settles, S. “Estimation Methods for Systems Engineering Reuse,” 7th Conference on Systems Engineering Research, Loughborough, U.K., April 2009.
Liu, K., Valerdi, R. and Rhodes, D. H. “Economics of Human Systems Integration: The Pratt & Whitney F119 Engine,” Human Systems Integration: 2+2=22! Greater than the Sum of its Parts, The American Society of Naval Engineers, Annapolis, MD, March 2009.
2008
Valerdi, R. “Cultural Barriers to the Adoption of Systems Engineering Research,” 2nd Asia-Pacific Conference on Systems Engineering, Yokohama, Japan, September 2008.
Valerdi, R. “Zen in the Art of Cost Estimation,” 2nd Asia-Pacific Conference on Systems Engineering, Yokohama, Japan, September 2008.
Fortune, J., Valerdi, R., “Considerations for Successful Reuse in Systems Engineering,” AIAA Space 2008, San Diego, CA, September 2008.
Wang, G., Valerdi, R., Ankrum, A., Millar, C., Roedler, G., “COSYSMO Reuse Extension,” 18th INCOSE Symposium, Utrecht, The Netherlands, June 2008.
Wang, G., Valerdi, R., Boehm, B., Shernoff, A., “Proposed Modification to COSYSMO Estimating Relationship,” 18thINCOSE Symposium, Utrecht, The Netherlands, June 2008.
Blackburn, C., Valerdi, R., “Measuring Systems Engineering Success: Insights From Baseball,” 18th INCOSE Symposium, Utrecht, The Netherlands, June 2008.
Valerdi, R., Nightingale, D., Blackburn, C., “Practical Implications of Enterprise Research,” 6th Conference on Systems Engineering Research, Los Angeles, CA, April 2008.
Becerra-Fernández, I., Madey, G., Prietula, M., Rodríguez, D., Valerdi, R., Wright, T., “Design and Development of a Virtual Emergency Operations Center for Disaster Management Research, Training, and Discovery,” In Proceedings of the 41st Annual Hawaii International Conference on System Sciences, IEEE Computer Society Press, January, 2008.
2007
Valerdi, R., Wheaton, M. J., Fortune, J., Systems Engineering Cost Estimation for Space Systems, AIAA Space 2007, September 2007, Long Beach, CA. [pdf]
Valerdi, R., Cognitive Limits of Software Cost Estimation, 1st Conference on Empirical Software Engineering & Measurement, September 2007, Madrid, Spain. [pdf]
Fong, A., Valerdi, R., Srinivasan, J., Using a Boundary Object Framework to Analyze Inter-Organizational Collaboration, 17th INCOSE Symposium, June 2007, San Diego, CA. [pdf]
Valerdi, R., Miller, C., From Research to Reality: Making COSYSMO a trusted estimation tool in your organization, 17th INCOSE Symposium, June 2007, San Diego, CA. [pdf]
Valerdi, R., Rieff, J., Roedler, G., Wheaton, M., Lessons Learned from Industrial Validation of COSYSMO, 17th INCOSE Symposium, June 2007, San Diego, CA. [pdf]
Valerdi, R., Myth Buster: Do Engineers Trust Parametric Models Over Their Own Intuition?, 28th Conference of the International Society of Parametric Analysts, May 2007, New Orleans, LA. [pdf]
Valerdi, R., Pioneers of Parametrics, 28th Conference of the International Society of Parametric Analysts, May 2007, New Orleans, LA. [pdf]
Valerdi, R., Srinivasan, J., Nightingale, N., From Good to Lean: The Bottom Line Impact of Lean Thinking, Lean Aerospace Initiative Conference, April 2007, Cambridge, MD. [pdf]
Valerdi, R., Gaffney, J., Reducing Risk and Uncertainty in COSYSMO Size and Cost Drivers: Some Techniques for Enhancing Accuracy, 5th Conference on Systems Engineering Research, March 2007, Hoboken, NJ. [pdf]
Fong, A., Valerdi, R., Srinivasan, J., Boundary Objects as a Framework to Understand the Role of Systems Integrators, 5th Conference on Systems Engineering Research, March 2007, Hoboken, NJ. [pdf]
2006
Collar, E., Valerdi, R., Role of Software Readability on Software Development Cost, 21st Forum on COCOMO and Software Cost Modeling, October 2006, Herndon, VA. [pdf]
Valerdi, R., Gaffney, J., Roedler, G., Rieff, J., Extensions of COSYSMO to Represent Reuse, 21st Forum on COCOMO and Software Cost Modeling, October 2006, Herndon, VA. [pdf]
Wang, G., Lane, J., Valerdi, R., Boehm, B., Towards a Work Breakdown Structure for Net Centric System of Systems Engineering and Management, 16th INCOSE Symposium, July 2006, Orlando, FL. [pdf]
Valerdi, R., A Theory of Objective Sizing, 28th Conference of the International Society of Parametric Analysts, May 2006, Seattle, WA. [pdf]
Valerdi, R., Dixit, I., On the Use of Architectural Products for Cost Estimation, 4th Conference on Systems Engineering Research, April 2006, Los Angeles, CA. [pdf]
Honour, E., Valerdi, R., Advancing an Ontology for Systems Engineering to Allow Consistent Measurement, 4th Conference on Systems Engineering Research, April 2006, Los Angeles, CA. [pdf]
2005
Lane, J., Valerdi, R., Synthesizing System-of-Systems Concepts for Use in Cost Estimation, IEEE Conference on Systems, Man, and Cybernetics, October 2005, Waikoloa, HI. [pdf]
Valerdi, R., Merrill, J., Maloney, P., Cost Metrics for Unmanned Aerial Vehicles, AIAA 16th Lighter-Than-Air Systems Technology Conference and Balloon Systems Conference, September 2005, Arlington, VA. [pdf]
Valerdi, R., Wheaton, M., ANSI/EIA 632 As a Standard WBS for COSYSMO, AIAA 1st Infotech@Aerospace Conference, September 2005, Arlington, VA. [pdf]
Valerdi, R., Raj, J., Sea Level Requirements as Systems Engineering Size Metrics, 15th INCOSE Symposium, July 2005, Rochester, NY. [pdf]
Yang, Y., Chen, Z., Valerdi, R., Boehm, B., Effect of Schedule Compression on Project Effort, 27th Conference of the International Society of Parametric Analysts, June 2005, Denver, CO. [pdf]
Valerdi, R., Eiche, B., On Counting Requirements, 3rd Conference on Systems Engineering Research, March 2005, Hoboken, NJ. [pdf]
2004
Valerdi, R., Lane, J., Steps Toward Model Unification for Software, Systems Engineering, and Systems of Systems,19th Forum on COCOMO and Software Cost Modeling, October 2004, Los Angeles, CA. [pdf]
Valerdi, R., Miller, C., Thomas, G., Systems Engineering Cost Estimation by Consensus, 17th International Conference on Systems Engineering, September 2004, Las Vegas, NV. [pdf]
Valerdi, R., Chen, Y., Yang, Y., System Level Metrics for Software Development Estimation, 3rd ACM-IEEE International Symposium on Empirical Software Engineering, August 2004, Redondo Beach, CA. [pdf]
Chen, Y., Boehm, B., Madachy, R., Valerdi, R., An Empirical Study of eServices Product Sizing Metrics, 3rd ACM-IEEE International Symposium on Empirical Software Engineering, August 2004, Redondo Beach, CA. [pdf]
Valerdi, R., Ernstoff, M., Mohlman, P., Reifer, D., Stump, E., Systems Engineering Sizing in the Age of Acquisition Reform, 14th INCOSE Symposium, June 2004, Toulouse, France. [pdf]
Valerdi, R., Rieff, J., Roedler, G., Wheaton, M., Lessons Learned for Collecting Systems Engineering Data, 2nd Conference on Systems Engineering Research, April 2004, Los Angeles, CA. [pdf]
Valerdi, R., Kohl, R., An Approach to Technology Risk Management, 1st MIT Engineering Systems Division Symposium, March 2004, Cambridge, MA. [pdf]
2003
Valerdi, R., Majchrzak, A., Individual Players in a Team Sport: Stakeholder Change in Commitment in ISD Projects, Americas Conference on Information Systems, August 2003, Tampa, FL.
Valerdi, R., Boehm, B., Reifer, D., COSYSMO: A Constructive Systems Engineering Cost Model Coming Age, 13th INCOSE Symposium, July 2003, Crystal City, VA. [pdf]
Boehm, B., Reifer, D., Valerdi, R., COSYSMO-IP: A Systems Engineering Cost Model, 1st Conference on Systems Integration, March 2003, Hoboken, NJ. [pdf]