Andrew Ko

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  www.comscigate.com/Alice/Research/NatPrgLangs.htm - [Cached Version]
  Published on: 4/1/2004    Last Visited: 9/8/2008  

  by Brad A. Myers, John F. Pane, Andy Ko
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  6. Ko, A.J. and Myers, B.A. Development and evaluation of a model of programming errors.
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  7. Ko, A.J. and Myers, B.A. Designing the Whyline, a debugging interface for asking why and why not questions about runtime failures.
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  Andy Ko (ajko@cmu.edu) is a Ph.D. student in the Human Computer Interaction Institute at Carnegie Mellon University, Pittsburgh, PA.

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  www.nilkanth.com/archives/2004/08/18/whyline-debugging- - [Cached Version]
  Published on: 8/1/2004    Last Visited: 6/1/2007  

  Researchers seek simpler software debugging: Andrew Ko, a computer researcher at Carnegie Mellon University, talks about a new debugging program called Whyline, that lets users ask questions about computer errors in plain English.Full story …
  
  Entry Filed under: Technology, Software Mgmt, Security, Linklog

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  eusesconsortium.org/index.php - [Cached Version]
  Published on: 10/10/2008    Last Visited: 7/23/2008  

  Myers, B.A, Weitzman, D.A, Ko, A.J, Chau, D.H, "Answering Why and Why Not Questions in User Interfaces", Proceedings CHI'2006: Human Factors in Computing Systems, Montreal, Canada, April 22-23, 2006. pdf
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  Andrew Ko, Brad Myers

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  ACM News Service - [Cached Version]
  Published on: 12/18/2000    Last Visited: 5/23/2004  

  Carnegie Mellon EUSES researchers Andrew Ko and Brad Myers presented a separate report describing a unique debugging interface that asks programmers questions about "why did" or "why didn't" something happen; users were able to find errors eight times faster and make 40 percent more programming progress.

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  Ashutosh Nilkanth’s Blog » Software Mgmt - [Cached Version]
  Published on: 10/10/2008    Last Visited: 6/1/2007  

  Whyline Debugging Software - Researchers seek simpler software debugging: Andrew Ko, a computer researcher at Carnegie Mellon University, talks about a new debugging program called Whyline, that lets users ask questions about computer errors in plain English.Full story …

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  CHI 2005: Papers Reviewers - [Cached Version]
  Published on: 1/1/2005    Last Visited: 9/14/2008  

  Andrew Ko, Carnegie Mellon University, USA

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  CNN.com - Researchers seek simpler software debugging... - [Cached Version]
  Published on: 7/27/2004    Last Visited: 7/28/2004  

  Andrew Ko, a computer researcher at Carnegie Mellon University, talks about a new debugging program called Whyline.
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  Myers and a graduate student, Andrew Ko, have developed a debugging program that lets users ask questions about computer errors in plain English: Why didn't a program behave as expected?
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  In studies involving a handful of graduate students, from relative novices to experienced programmers, Ko and Myers found that Whyline could help users find bugs eight times faster and do 40 percent more programming.

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  Chui’s counterpoint » 2005 » May - [Cached Version]
  Published on: 5/1/2005    Last Visited: 3/26/2008  

  Well, writing programs with unfamiliar libraries is very much a similar process, argues Andrew Ko at the Human-Computer Interaction Institute at CMU in the paper titled Six Learning Barriers in End-User Programming Systems (pdf).

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  Debugging for the Masses - [Cached Version]
  Published on: 10/10/2008    Last Visited: 5/19/2004  

  In a paper that EUSES collaborators Myers and Carnegie-Mellon graduate student Andrew Ko presented at the CHI 2004 conference, they described a novel environment that allows programmers to find bugs by asking "why did" or "why didn't" an event happen.They took an existing programming environment called Alice (www.alice.org), and put a "Why?"button in it, which can allow a user trying to create, say, a simple graphical animation to stop the animation at any point where an expected event went wrong.An example is shown in the screen shot , where the user is seeking the answer to why a Pac-Man character didn't make an expected left turn in an animation.
  
  The button returns code location-specific information about the presence or absence of the right instructions for the event.In Myers' and Ko's research, the new debugging interface helped programmers find bugs eight times faster and make 40 percent more progress in the programming task.

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  EUSES: Contact Us - [Cached Version]
  Published on: 4/9/2008    Last Visited: 7/23/2008  

  Andrew Ko

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