🚀 go-pugleaf

      DEPARTMENT OF COMPUTER SCIENCE
        COLORADO STATE UNIVERSITY

                BARNEY'S
      MONDAY AFTERNOON CLUB SEMINAR

     Speakers:	Dr. Yashwant Malaiya
		Jason Denton
		Department of Computer Science
		Colorado State University

	 Date:	Monday, May 4, 1998
	 Time:	4:00-5:00 p.m.
	Place:	100 USC

    Refreshments:  following the talk

  ACCURATE SOFTWARE DEFECT DENSITY ESTIMATION

Defect density is one of the most important factors 
that allow one to decide if a piece of software is
ready to be released.  In theory, one can find all 
the defects and count them; however, it is imposs-
ible to find all the defects within any reasonable 
amount of time.  Estimating defect density can be-
come difficult for high reliability software, since 
the remaining defects can be extremely hard to test.  
Here we discuss the problems with existing approaches
and present a new approach based on software test 
coverage.  Software test coverage directly measures 
the thoroughness of testing, avoiding the problem of 
variations of test effectiveness.  We will present 
interpretations of the parameters of the coverage-
defect-density model presented by Malaiya, et al.  
We apply this model to actual test data to project
the residual defect density.  The results show that 
this method results in estimates that are remarkably 
stable.  This method is easier to understand, and 
the convergence to the estimate can be visually 
observed.


The BMAC seminar schedule can be found by clicking on 
the "Upcoming Events" button on the Computer Science 
Department's web page at http://www.cs.colostate.edu/