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William E. Howden

Professor of Computer Science

Department of Computer Science and Engineering

University of California at San Diego                               

La Jolla, CA    92093               howden@cse.ucsd.edu

 

Courses

CSE 111: Object Oriented Design

CSE 211: Software Testing and Analysis

CSE 218:  Advanced Testing Methods (Spring 2005: Test Patterns and Frameworks)

 

Research Summary 

Most of my research has been in the area of software testing.  I was one of the founders of this research area and was on the committee that organized the first testing research workshop, which eventually became the ISSTA conference.  I have worked in most areas of testing research, and I think I was the first person to use some of its now standard terminology, such as  "infeasible paths" and "test oracle".  In the very early days of testing research we were a small group who all knew each other and it was not difficult to keep track of what was going on.  

My first research in testing resulted in a very early symbolic evaluation system (Methodology for the Generation of Program Test Data. IEEE Trans. Computers, 24(5): 554-560, 1975), and my current research is in automated testing.  My research in testing has included results in: symbolic evaluation, theory of testing, algebraic testing, statistical testing, weak mutation testing, event sequence analysis, software model checking, comments analysis, program understanding, trustability analysis, functional testing, and empirical studies of effectiveness.  I was made a Fellow of the IEEE for my work in functional testing.

 

Books

Howden, William E., Functional Program Testing and Analysis. New York: McGraw-Hill, 1987.

Miller, Edward and William E. Howden, Software Testing and Validation Techniques, 2nd ed. New York: IEEE Computer Society Press, 1981.

E. F. Miller and W. E. Howden, Software Testing and Validation Techniques,  IEEE Computer Society, Long Beach, CA, 1978.

 

Published  Papers

William E. Howden, Software Test Selection Patterns and Elusive Bugs, Proceedings COMPSAC 2005, IEEE, 2005.

W.E. Howden, R. Kim and P. Tran, Model-Based Extreme Testing,  ISSRE 2002 (Extended Abstracts), 2002

William E. Howden, Good Enough versus High Assurance Software Testing and Evaluation Methods. HASE 1998: 1998

W.E. Howden, Proceedings ISSRE 97, Confidence-Based Reliability And Statistical Coverage Estimation , Albuquerque, 1997, p. 283

William E. Howden, Systems testing and statistical test data coverage, COMPSAC 1997: 500-504 1997

William E. Howden, Suehee Pak: The Derivation of Functional Specifications from Source Code. APSEC 1996: 166- 30

William E. Howden, Auditing Informal Software Testing and Analysis Processes. APSEC 1996: 332- 29

William E. Howden, G. M. Shi: Linear and Structural Event Sequence Analysis. ISSTA 1996: 98-106, 1996

William E. Howden, G. M. Shi: Temporal Event Analysis and Program Understanding. COMPSAC 1995: 4-11 27, 1995

William E. Howden, Yudong Huang: Software Trustability Analysis. ACM Trans. Softw. Eng. Methodol. 4(1): 36-64 (1995) 1994

William E. Howden, Yudong Huang: Confidence Oriented Software Dependability Measurement (Abstract). ISSTA 1994: 1994

W.E. Howden, and Cheron Vail, An informal verification of a critical system, Proceedings Fifth international Conference on Software Engineering and its Applications, CIGREF, Toulouse, 1992

William E. Howden, Bruce Wieand: QDA-A Method for Systematic Informal Program Analysis. IEEE Trans. Software Eng. 20(6): 445-462 (1994) 1991

William E. Howden, David Nesbitt, Cheron Vail Bruce Wieand: Verification of complex systems using incremental operational specifications. Inf. Sci. 57-58: 427-450 (1991)

William E. Howden, Program Testing versus Proofs of Correctness. Softw. Test., Verif. Reliab. 1(1): 5-15 (1991) 1990

William E. Howden, Comments Analysis and Programming Errors. IEEE Trans. Software Eng. 16(1): 72-81 (1990) 1989

William E. Howden:,Error-Based Validation Completeness. ICSE 1989: 357

William Howden, A Comparison of Software and Hardware Testing. IFIP Congress 1989: 344

William E. Howden, Validating Programs without Specifications. Symposium on Testing, Analysis, and Verification 1989: 2-9 1986

William E. Howden, A Functional Approach to Program Testing and Analysis. IEEE Trans. Software Eng. 12(10): 997-1005 (1986)

Shmuel Rotenstreich, William E. Howden: Two-Dimensional Program Design. IEEE Trans. Software Eng. 12(3): 377-384 (1986) 1982

William E. Howden, Validation of Scientific Programs. ACM Comput. Surv. 14(2): 193-227 (1982)

William E. Howden, Contemporary Software Development Environments. Commun. ACM 25(5): 318-329 (1982)

William E. Howden, Life-Cycle Software Validation. IEEE Computer 15(2): 71-78 (1982)

William E. Howden, Weak Mutation Testing and Completeness of Test Sets. IEEE Trans. Software Eng. 8(4): 371-379 (1982) 1981

William E. Howden, Completeness Criteria for Testing Elementary Program Functions. ICSE 1981: 235-243 1980

William E. Howden, Applicability of Software Validation Techniques to Scientific Programs. ACM Trans. Program. Lang. Syst. 2(3): 307-320 (1980)

William H. Howden,  Functional Testing and Design Abstractions, The Journal of Systems and Software, Volume 1, Number 4, 1980, 307-31

William E. Howden, Functional Program Testing. IEEE Trans. Software Eng. 6(2): 162-169 (1980) 1978

William E. Howden, Theoretical and Empirical Studies of Program Testing. ICSE 1978: 305-311

William E. Howden, Algebraic Program Testing. Acta Inf. 10: 53-66 (1978)

William E. Howden, DISSECT-A Symbolic Evaluation and Program Testing System. IEEE Trans. Software Eng. 4(1): 70-73 (1978)

William E. Howden, Theoretical and Empirical Studies of Program Testing. IEEE Trans. Software Eng. 4(4): 293-298 (1978)

William E. Howden, Lindenmayer Grammars and Symbolic Testing. Inf. Process. Lett. 7(1): 36-39 (1978)

 William E. Howden, An Evaluation of the Effectiveness of Symbolic Testing. Softw., Pract. Exper. 8(4): 381-397 (1978) 1977

William E. Howden, Symbolic Testing and the DISSECT Symbolic Evaluation System. IEEE Trans. Software Eng. 3(4): 266-278 (1977) 1976

William E. Howden, Experiments with a symbolic evaluation system, Proceedings, National Computer Conference, 1976

William E. Howden, Reliability of the Path Analysis Testing Strategy. IEEE Trans. Software Eng. 2(3): 208-215, 1976 

William E. Howden, Methodology for the Generation of Program Test Data. IEEE Trans. Computers, 24(5): 554-560, 1975

W. E. Howden   Solution plans and interactive problem solving, Computers and Graphics, Volume 1, Number 1, May, 1975, 21- 26.

W.E. Howden, The sofa problem, The Computer Journal, Volume 11, Issue 3: November 1968. pp. 299-301 

W.E. Howden, A program for the construction of PERT flow charts, The Computer Journal, Volume 10, Issue 3: November 1967 pp. 278-281