 | Stephen H. EdwardsAssociate Professor
|
Research Interests
I am an associate professor in the Department of Computer Science here at Virginia Tech. My research interests are in software engineering, the use of formal methods in programming languages, automated testing, component-based approaches, and computer science education. I am particularly interested in software reuse and component-based software engineering.
I am a member of the Reusable Software Research Group (RSRG), which has headquarters at both The Ohio State University and Clemson University. RSRG research addresses a broad spectrum of research, instructional, and technology transfer aspects of component-based software.
What is Web-CAT?
Web-CAT is a plug-in-based web application that supports electronic submission and automated grading of programming assignments. It supports fully customizable, scriptable grading actions and feedback generation for any assignment.
Web-CAT supports traditional models of automated program grading, but also supports grading of assignments where students do their own testing. It helps encourage test-driven development (also called test-first coding), where students write small unit tests for each piece of code they add. Web-CAT allows a student to submit his or her test cases along with the solution, and grades on test validity and test completeness as well as code correctness.
Visit http://web-cat.org, our community-driven web site, to learn more about Web-CAT and some of our other educational projects. It provides our discussion forums, wiki-based documentation, screen capture movies of Web-CAT in action, downloads, and access to our bug tracker and feature request tracker.
2013
Buffardi, K., and S. H. Edwards,
"Impacts of adaptive feedback on teaching test-driven development",
Proceeding of the 44th ACM technical symposiumProceeding of the 44th ACM technical symposium on Computer science education - SIGCSE '13, Denver, Colorado, USANew York, New York, USA, ACM Press, pp. 293-298, March, 2013.
Allevato, A., and S. H. Edwards,
"Dereferee: instrumenting C++ pointers with meaningful runtime diagnostics",
Software: Practice and Experience: John Wiley & Sons, Ltd, 2013.
Edwards, S. H.,
"Re-imagining CS1/CS2 with Android using the Sofia framework",
Proceeding of the 44th ACM Technical Symposium on Computer Science Education - SIGCSE '13, Denver, Colorado, USANew York, New York, USA, ACM Press, pp. 759, March, 2013.
2012
Allevato, A., and S. H. Edwards,
"RoboLIFT: Engaging CS2 students with testable, automatically evaluated Android applications",
Proceedings of the 43rd ACM Technical Symposium on Computer Science Education, Raleigh, NC, ACM Press, New York, NY, 2012.
Edwards, S. H., Z. Shams, M. Cogswell, and R. C. Senkbeil,
"Running students' software tests against each others' code: New life for an old "gimmick"",
Proceedings of the 43rd ACM Technical Symposium on Computer Science Education, Raleigh, NC, ACM Press, New York, NY, 2012.
Buffardi, K., and S. H. Edwards,
"Impacts of teaching test-driven development to novice programmers",
International Journal of Information and Computer Science, vol. 1, no. 6, pp. 135-143, 2012.
Snyder, J., D. Seeralan, S. Sayed, J. Wilson, C. B. Dietrich, S. H. Edwards, and J. H. Reed,
"Open source software-defined radio tools for education, research, and rapid prototyping",
International Journal on Software Tools for Technology Transfer, pp. 1-14, 2012.
Buffardi, K., and S. H. Edwards,
"Exploring influences on student adherence to test-driven development",
Proceedings of the 17th ACM Annual Conference on Innovation and Technology in Computer Science Education - ITiCSE '12, Haifa, Israel, ACM Press, pp. 105-110, July, 2012.
2011
Shaffer, C. A., M. Akbar, A. J. D. Alon, M. Stewart, and S. H. Edwards,
"Getting algorithm visualizations into the classroom",
Proceedings of the 42nd ACM Technical Symposium on Computer Science Education - SIGCSE '11, Dallas, TX, USA, ACM Press, pp. 129, 2011.
Edwards, S. H., and G. Back,
"Bringing creative web 2.0 programming into CS1: Conference workshop",
J. Comput. Small Coll., vol. 26: Consortium for Computing Sciences in Colleges, pp. 54–55, January, 2011.
Snyder, J., S. H. Edwards, and M. A. Pérez-Quiñones,
"LIFT: Taking GUI unit testing to new heights",
Proceedings of the 42nd ACM Technical Symposium on Computer Science Education, New York, NY, USA, ACM, pp. 643–648, 2011.
Turner, S., M. A. Pérez-Quiñones, S. H. Edwards, and J. Chase,
"Student attitudes and motivation for peer review in CS2",
Proceedings of the 42nd ACM Technical Symposium on Computer Science Education, New York, NY, USA, ACM, pp. 347–352, 2011.
Edwards, S. H., G. Back, and M. Woods,
"Experiences evaluating student attitudes in an introductory programming course",
Proceedings of the 2011 International Conference on Frontiers in Education: Computer Science and Computer Engineering, Las Vegas, NV, CSREA Press, pp. pp. 477-482, 2011.
Woods, M., and S. H. Edwards,
"Improving exception messages with ExceptionDoctor",
Proceedings of the 2011 International Conference on Frontiers in Education: Computer Science and Computer Engineering, Las Vegas, NV, CSREA Press, pp. pp. 466-471, 2011.
Snyder, J., B. McBair, S. H. Edwards, and C. B. Dietrich,
"OSSIE: An open source software defined radio platform for education and research",
Proceedings of the 2011 International Conference on Frontiers in Education: Computer Science and Computer Engineering, Las Vegas, NV, CSREA Press, pp. pp. 30-34, 2011.
Shaffer, C. A., and S. H. Edwards,
"Scheduling and student performance",
Proceedings of the 16th annual joint conference on Innovation and technology in computer science education - ITiCSE '11, Darmstadt, Germany, ACM Press, pp. 331, 2011.
2010
Shaffer, C. A., T. L. Naps, S. H. Rodger, and S. H. Edwards,
"Building an online educational community for algorithm visualization",
Proceedings of the 41st ACM technical symposium on Computer science education, SIGCSE 2010, pp. 475-476, March, 2010.
Turner, S., M. A. Pérez-Quiñones, S. Edwards, and J. Chase,
"Peer review in CS2: conceptual learning.",
Proceedings of the 41st ACM Technical Symposium on Computer Science Education,, pp. 331-335, March 10-13, 201, 2010.
Fox, E. A., Y. Chen, M. Akbar, C. A. Shaffer, S. H. Edwards, P. Brusilovsky, D. D. Garcia, L. M. L. Delcambre, F. Decker, D. W. Archer, et al.,
"Ensemble PDP-8: eight principles for distributed portals",
Proceedings of the 2010 Joint International Conference on Digital Libraries, JCDL 2010, Gold Coast, Queensland, Australia, ACM, pp. 341-344, 06/2010.
Shaffer, C. A., M. L. Cooper, A. J. D. Alon, M. Akbar, M. Stewart, S. Ponce, and S. H. Edwards,
"Algorithm visualization: The state of the field",
ACM Transactions on Computing Education, vol. 10, New York, NY, USA, ACM, pp. 9:1–9:22, August, 2010.
Shipman, F. M., L. Cassel, E. Fox, R. Furuta, L. Delcambre, P. Brusilovsky, S. B. Carpenter, G. Hislop, S. Edwards, and D. D. Garcia,
"Ensemble: a distributed portal for the distributed community of computing education",
Proceedings of the 14th European Conference on Research and Advanced Technology for Digital Libraries, Berlin, Heidelberg, Springer-Verlag, pp. 506–509, 2010.
Dietrich, C. B., F. E. Kragh, S. M. Hasan, J. H. Reed, D. L. Miller, and S. H. Edwards,
"Enhancements to software defined radio design engineering education",
2010 ASEE Southeastern Section Annual Conference and Meeting, April, 2010.
Dietrich, C. B., F. E. Kragh, S. M. Hasan, A. C. Gonzalez, A. A. Adenariwo, H. I. Volos, C. C. Dietrich, D. L. Miller, J. Snyder, S. H. Edwards, et al.,
"Implementation and evaluation of laboratory/tutorial exercises for software defined radio education",
2010 ASEE Southeastern Section Annual Conference and Meeting, April, 2010.
Van Metre, J. P., and S. H. Edwards,
"Source code plagiarism and the honor court",
2010 ASEE Southeastern Section Annual Conference and Meeting, April, 2010.
Buffardi, K., D. Churbanau, R. K. N. Jayaraman, and S. H. Edwards,
"CoPractice: An adaptive and versatile practice tool",
2010 ASEE Southeastern Section Annual Conference and Meeting, April, 2010.
Allevato, A., and S. H. Edwards,
"Discovering patterns in student activity on programming assignments",
2010 ASEE Southeastern Section Annual Conference and Meeting, April, 2010.
Abstract
Dietrich, C. B., J. H. Reed, S. H. Edwards, and F. E. Kragh,
"Experiences from the OSSIE open source software defined radio project",
Open Source Business Resource, pp. pp. 22-26, March 2010.
2009
Allevato, A., S. H. Edwards, and M. A. Pérez-Quiñones,
"Dereferee: Exploring pointer mismanagement in student code",
Proceedings of the 40th ACM Technical Symposium on Computer Science Education, New York, NY, USA, ACM, pp. 173–177, 2009.
Edwards, S. H., J. Snyder, A. Allevato, M. A. Pérez-Quiñones, D. Kim, and B. Tretola,
"Comparing effective and ineffective behaviors of student programmers",
Fifth International Workshop on Computing Education Research - ICER '09, Berkeley, CA, USA, ACM Press, pp. 3, 2009.
Edwards, S. H., and G. Kulczycki,
"Proceedings of the 11th International Conference on Software Reuse: Formal Foundations of Reuse and Domain Engineering",
Lecture Notes in Computer Science, vol. 5791: Springer Verlag, 2009.
2008
Allevato, A., M. Thornton, S. H. Edwards, and M. A. Pérez-Quiñones,
"Mining data from an automated grading and testing system by adding rich reporting capabilities.",
Proceedings of the First International Conference on Educational Data Mining, Montreal, Canada, pp. 167-176, 06/2008.
Thornton, M., and S. H. Edwards,
"A data type to exploit online data sources",
Proceedings of the 12th Annual SIGCSE Conference on Innovation and Technology in Computer Science Education, Madrid, Spain, June-July, 2008.
Turner, S. A., R. Quintana-Castillo, M. A. Pérez-Quiñones, and S. H. Edwards,
"Misunderstandings about object-oriented design: experiences using code reviews",
Proceedings of the 39th SIGCSE Technical Symposium on Computer Science Education, New York, NY, ACM Press, pp. 97–101, 2008.
Thornton, M., S. H. Edwards, R. P. Tan, and M. A. Pérez-Quiñones,
"Supporting student-written tests of GUI programs",
39th SIGCSE Technical Symposium on Computer Science Education - SIGCSE'08, Portland, OR, ACM Press, pp. 537–541, 03/2008.
Edwards, S. H., J. Börstler, L. N. Cassel, M. S. Hall, and J. Hollingsworth,
"Developing a common format for sharing programming assignments",
ACM SIGCSE Bulletin, vol. 40, issue 4, pp. 167-182, Nov. 2008.
Sanders, K., B. Richards, J. E. Moström, V. Almstrum, S. Edwards, S. Fincher, K. Gunion, M. Hall, B. Hanks, S. Lonergan, et al.,
"DCER: Sharing empirical computer science education data",
Proceeding of the Fourth International Workshop on Computing Education Research, New York, NY, USA, ACM, pp. 137–148, 2008.
Edwards, S. H., and M. A. Pérez-Quiñones,
"Web-CAT: Automatically grading programming assignments",
Proceedings of the 13th Annual Conference on Innovation and Technology in Computer Science Education - ITiCSE '08, Madrid, Spain, ACM Press, pp. 328, 2008.
2007
Shaffer, C. A., M. Cooper, and S. H. Edwards,
"Algorithm visualization: a report on the state of the field",
SIGCSE '07: Proceedings of the 38th SIGCSE technical symposium on Computer science education, New York, NY, USA, ACM, pp. 150–154, 2007.
Edwards, S. H., and M. A. Pérez-Quiñones,
"Experiences using test-driven development with an automated grader",
Journal of Computing Sciences in Colleges, vol. 22, no. 3, pp. 44-50, 2007.
Edwards, S. H., and W. Haggard,
"A flexible strategy for embedding and configuring run-time contract checks in .NET components",
International Journal of Software Engineering and Knowledge Engineering, vol. 17, no. 3, pp. 315–338, June, 2007.
Edwards, S. H., and V. Ly,
"Mining the data in programming assignments for educational research",
Proceedings of the International Conference on Education and Information Systems: Technologies and Applications (EISTA’07), July, 2007.
Thornton, M., S. H. Edwards, and R. P. Tan,
"Helping students test programs that have graphical user interfaces ",
International Conference on Education and Information Systems: Technologies and Applications (EISTA’07), July, 2007.
Turner, S. A., M. A. Pérez-Quiñones, and S. H. Edwards,
"Effect of interface style in peer review comments for UML designs",
Journal of Computing Sciences in Colleges, vol. 22, no. 3, pp. 214–220, 2007.
2006
Vastani, H., S. H. Edwards, and M. A. Pérez-Quiñones,
"Supporting on-line direct markup and evaluation of students’ projects",
Computers in Education Journal, vol. 16, no. 3, pp. 88–99, July-Sept, 2006.
Powell, A., S. Turner, M. Tungare, M. A. Pérez-Quiñones, and S. H. Edwards,
"An online teacher peer review system",
Proceedings of Society for Information Technology and Teacher Education International Conference 2006, AACE, Chesapeake, VA, 2006, pp. 126–133, 2006.
Edwards, S. H., M. A. Pérez-Quiñones, M. Phillips, and J. RajKumar,
"Graphing performance on programming assignments to improve student understanding",
Proceedings of the 9th iNEER International Conference on Engineering Education, San Juan, Puerto Rico, pp. 6, 07/2006.
Humphries, W., J. Gawrilow, S. Turner, M. A. Pérez-Quiñones, and S. H. Edwards,
"Helping students visualize their grade performance",
Proceedings of the American Society for Engineering Education Annual Conference, ASEE, Chicago, IL, pp. 11, 2006.
Agarwal, R., S. H. Edwards, and M. A. Pérez-Quiñones,
"Designing an adaptive learning module to teach software testing",
Proceedings of the 37th SIGCSE Technical Symposium on Computer Science Education, Houston, Texas, USA, ACM Press, New York, NY, pp. 259–263, March, 2006.
Powell, A., S. Turner, M. Tungare, M. A. Pérez-Quiñones, and S. H. Edwards,
"An online peer review system",
Eastern Educational Research Association 2006 Annual Conference, Hilton Head, SC, February 22–25, 2006.
2005
Cheon, Y., G. T. Leavens, M. Sitaraman, and S. H. Edwards,
"Model variables: Cleanly supporting abstraction in Design by Contract",
Software: Practice and Experience, vol. 35, no. 6, May, 2005.
Edwards, S. H., and D. M. Hodge,
"Lessons learned by comparing on-line education strategies across disciplines",
Journal of Systemics, Cybernetics and Informatics, vol. 2, no. 6, 2005.
Vastani, H., S. H. Edwards, and M. A. Pérez-Quiñones,
"Supporting online direct markup and evaluation of students’ projects",
Proceedings of the American Society for Engineering Education Annual Conference, ASEE, Portland, OR, pp. 12pp, 06/2005.
Turner, S. A., M. A. Pérez-Quiñones, and S. H. Edwards,
"minimUML: A minimalist approach to UML diagramming for early computer science education",
Journal of Educational Resources in Computing, vol. 5, no. 4, pp. 1–28, 2005.
Allowatt, A., and S. H. Edwards,
"IDE Support for test-driven development and automated grading in both Java and C++",
Proceedings of the 2005 OOPSLA workshop on Eclipse technology eXchange, New York, NY, USA, ACM, pp. 100–104, 2005.
2004
Edwards, S. H., and D. N. Barnette,
"Experiences using tablet PCs in a programming laboratory",
Proceedings of the 5th Conference on Information Technology Education, Salt Lake City, UT, pp. 160-164, 10/2004.
Edwards, S. H., M. Sitaraman, B. W. Weide, and J. Hollingsworth,
"Contract-checking wrappers for C++ classes",
IEEE Transactions on Software Engineering, vol. 30, no. 11, pp. 794–810, November, 2004.
Yilmaz, L., and S. H. Edwards,
"On the analysis and detection of collaborative behavior conflicts within the DEVS formalism",
Proceedings of the 2004 UK Simulation Workshop, University of Birmingham, UK, 2004.
Edwards, S. H.,
"Using software testing to move students from trial-and-error to reflection-in-action",
Proceedings of the 35th SIGCSE Technical Symposium on Computer Science Education, ACM, pp. 26–30, 2004.
2003
Edwards, S. H.,
"Improving student performance by evaluating how well students test their own programs",
Journal of Educational Resources in Computing, vol. 3, no. 3, pp. 1–24, September, 2003.
Edwards, S. H.,
"Rethinking computer science education from a test-first perspective",
Addendum to the 2003 Proceedings of the Conference on Object-oriented Programming, Systems, Languages, and Applications (Educator’s Symposium), pp. 148–155, 2003.
Edwards, S. H.,
"Teaching software testing: Automatic grading meets test-first coding",
Addendum to the 2003 Proceedings of the Conference on Object-oriented Programming, Systems, Languages, and Applications, pp. 318–319, 2003.
Edwards, S. H.,
"Using test-driven development in the classroom: Providing students with automatic, concrete feedback on performance",
Proceedings of the International Conference on Education and Information Systems: Technologies and Applications (EISTA’03), International Institute of Informatics and Systemics, 2003, pp. 421–426, 2003.
Edwards, S. H., and D. M. Hodge,
"Lessons learned by comparing on-line education strategies across disciplines",
Proceedings of the International Conference on Education and Information Systems: Technologies and Applications (EISTA’03), International Institute of Informatics and Systemics, 2003, pp. 415–420, 2003.
Edwards, S. H.,
"An object-oriented micro-kernel supporting transparent distribution of embedded control applications",
Proceedings of the International Conference on Computer, Communication and Control Technologies: CCCT’03, Vol. 1, International Institute of Informatics and Systemics, 2003,, pp. 129–134, 2003.
2002
Guo, J., S. H. Edwards, and D. Borojevic,
"Elementary control objects: Toward a dataflow architecture for power electronics control software",
Proceedings of the IEEE 33rd Annual Power Electronics Specialists Conference, PESC 02, pp. 1705–1710, 2002.
2001
Edwards, S. H.,
"A framework for practical, automated black-box testing of component-based software",
Software Testing, Verification and Reliability, vol. 11, no. 2, pp. 97– 111, June, 2001.
2000
Gibson, D. S., B. W. Weide, S. M. Pike, and S. H. Edwards,
"Toward a normative theory for component-based system design and analysis",
Foundations of Component-Based Systems: Cambridge University Press, pp. 211–230, 2000.
Abstract
Ravindran, B., and S. H. Edwards,
"Palette: A reusable specification language for real-time systems",
Software Reuse: Advances in Software Reusability, W.B. Frakes, ed., Springer-Verlag, Lecture Notes in Computer Science, 2000.
Edwards, S. H.,
"Can quality graduate software engineering courses really be delivered asynchronously on-line?",
Proceedings of the 22nd International Conference on Software Engineering: ACM CS Press, 2000, pp. 676–679, 2000.
1999
Edwards, S. H., and C. A. Shaffer,
"An Analysis of a Course-Oriented Electronic Mailing List",
Computer Science Education, vol. 9, no. 1, pp. 8–22, April, 1999.
Edwards, S. H., S. M. Henry, and R. P. Bodnar,
"Software metrics for multimedia languages",
Software Measurement: Current Trends in Research and Practice: Wiesbaden: Deutscher Universitats Verlag, 1999.
1998
Edwards, S. H., G. Shakir, M. Sitaraman, B. W. Weide, and J. Hollingsworth,
"A framework for detecting interface violations in component-based software",
Proceedings of the Fifth International Conference on Software Reuse, IEEE CS Press, pp. 46–55, June, 1998.
Abstract
1997
Edwards, S. H.,
"Representation inheritance: A safe form of “white box” code inheritance",
IEEE Transactions on Software Engineering, vol. 23, no. 2, pp. 83–92, February, 1997.
1996
Edwards, S. H.,
"Representation inheritance: A safe form of “white box” code inheritance",
Proceedings of the Fourth International Conference on Software Reuse: IEEE Computer Society Press, pp. 195–204, April, 1996.
Abstract
W.Weide, B., S. H. Edwards, W. D. Heym, T. J. Long, and W. F. Ogden,
"Characterizing observability and controllability of software components",
Proceedings of the Fourth International Conference on Software Reuse: IEEE Computer Society Press, pp. 62–71, April, 1996.
Abstract
1995
Edwards, S. H.,
"Streams: A pattern for “pull-driven” processing",
Pattern Languages of Program Design,: Addison- Wesley, 1995.
Zweben, S., S. H. Edwards, B. Weide, and J. Hollingsworth,
"The effects of layering and encapsulation on software development cost and quality",
IEEE Transactions on Software Engineering, vol. 21, no. 3, pp. 200–208, March, 1995.
1994
W.Weide, B., S. H. Edwards, D. E. Harms, and D. A. Lamb,
"Design and specification of iterators using the swapping paradigm",
IEEE Transactions on Software Engineering, vol. 20, no. 8, pp. :631–643, August, 1994.
1993
Edwards, S. H.,
"Common interface models for reusable software",
Journal of Software Engineering and Knowledge Engineering, vol. 3, no. 2, pp. 193–206, 1993.
Please see projects at: http://people.cs.vt.edu/~edwards/
Algoviz Project Steering Committee Workshop
Granting Institution: National Science Foundation
Amount: $8,500
Building a Community and Establishing Best Practices in Algorithm Visualization Through the Algoviz Wiki
Granting Institution: National Science Foundation
Amount: $149,206
Classroom Interventions to Reduce Procrastination
Granting Institution: National Science Foundation
Amount: $199,992
Code Practive: Adaptive, Social Drill-and-Practive Exercises to Develop Coding Skills
Granting Institution: National Science Foundation
Amount: $321,090
Collaborative Project: Ensemble Enriching Communities and Collections To Support Education in Computing
Granting Institution: National Science Foundation
Amount: $358,323 out of total university award of $509,897
Community Resources For Automated Grading
Granting Institution: National Science Foundation
Amount: $402,154
Educational Support For Testing Graphical User Interfaces
Granting Institution: National Science Foundation
Amount: $149,899
I/UCRC: wicat@vt
Granting Institution: National Science Foundation
Amount:
PYTHY - A Cloud-Based IDE for Novice Python Programmers
Granting Institution: Wabash College
Amount: $3,360
Reinvigorating CS1 by Enabling Creative Web 2.0 Programming
Granting Institution: National Science Foundation
Amount: $160,500
Steering Committee Workshop to Build a Community for Algorithm Visualization
Granting Institution:
Amount: $8,500
The AlgoViz Portal: Lowering the Barriers for Entry into an Online Educational Community
Granting Institution: National Science Foundation
Amount: $149,999