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The Killer Robot

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The Killer Robot Powered By Docstoc
					The case of the
 Killer Robot
         by
  Richard Epstein


     As retold by
  Netiva Caftori
      NEIU
   Oct. 2004
When software engineering and
   computer ethics collide
                    The news
u   A robot operator, Bart
    Matthews, was killed
    by his robot, Robbie
    CX30, while at work.
u   A programmer, Randy
    Samuels, who wrote
    the faulty code was
    indicted for
    manslaughter.
u   Silicon Techchronics is
    Randy’s employer.
        What really happened?
u   The robot
    malfunctioned &
    crushed its
    operator to death
u   Blood all over
u   Decapitated head
u   Num-lock key light
    not on
u   Numeric key pad
    bloody
             Who is at fault?
u   The programmer
    who made a
    careless mistake?
u   The designer?
u   The robotics
    division?
u   The company?
u   The operator of the
    robot?
u   The robot?
        Robbie CX 10 & 20 were
             experimental.
u   The robotics division chief, Johnson, put
    pressure on the project manager Reynolds
    to finish the project by January.
u   Johnson hired 20 new programmers in
    June against Reynolds’ will, by shifting
    resources. Robbie CX 30 had to succeed.
u   Johnson only knew manufacturing
    hardware. One cannot speed software
    coding by adding more programmers.
u   Robbie CX 30 was a step ahead in
    sophistication.
u   Johnson: Perfect software is an oxymoron.
        Programmer personality
u   Randy’s home page:
    freedom for
    programmers
u   A hacker type
u   Enormous stress
u   Programmer was a
    prima donna: could
    not accept criticism or
    his own fallibility
u   Helpful but arrogant
u   Under pressure to
    finish project on time
    A good programming team
u Needs to have a whole array of
  personalities types including:
u An interaction-oriented person

u Someone who keeps the peace and
  helps move things in a positive
  direction
u Task-oriented people, but not all

u A democratic team

u Egoless programming
            Team dynamics
u   The project was controversial from the
    beginning
u   Jan Anderson, a programmer, was fired
    after she attacked project manager
    Reynolds on his decision to use the
    waterfall methodology versus the
    prototype methodology.
u   Reynolds was replacing a dead project
    manager as a cost saving measure instead
    of hiring someone from outside the
    company. He never worked with robotics
    before.
          More explanations
u   The earlier Robbie models processed
    transactions. Robbie CX30 was to
    interact with its operator, therefore
    the interface cannot be designed as
    an afterthought. Thus, a prototyping
    model is preferable where the users
    can use a prototype robot while in
    the design stage.
    Software development life-cycle
        Water fall methodology
u   Requirements
u   Analysis
u   Design
u   Coding
u   Testing
u   Implementation
u   Maintenance

u   No standard
    practices
              Quality control
           or quality assurance
u Dynamic testing
u Static testing

u Unit testing: Black and white box
  testing
u Integration testing



u   Prof Silber attested that test results
    were inconsistent with actual killer
    code test results
    When is the software good
            enough?
u Errors can happen in any stage
u Design stage: 2 alternatives:

Waterfall & prototyping
u Testing

u User interface

u The complexity of the task of
  building real-world software
u Enormous stress
        The company-Sili-Tech
          Two environments:
Worker-friendly:         u   Worker-unfriendly:
  Chip Creek facility.       Silicon Valley plant.
  Prevent repetitive     u   Workers criticized
  strain injuries.           for novelties.
Special training for     u   No exercises or
  employees.                 training
Well designed                encouraged.
  workstations.          u   RSI frequent
Frequent breaks.         u   More compensation
                             claims
                  Law suits
u   The wife of the
    murdered
    operator.
u   The indicted
    programmer
    himself.
u   More possible
    indictments.
Why was Randy Samuels indicted?
u   Sili-Tech promised to deliver robots that would
    cause no bodily harm.
u   So Randy was not legally responsible for the
    death of the robot operator.
u   Waterson, the president of Sili-Tech has
    contributed large sums to the re-election of judge
    McMurdock, who indicted Randy.
u   Functional requirements specify the behavior of
    the robot under exceptional conditions. Operator
    intervention may be needed.
u   Exceptional conditions were not mentioned in
    training of operators.
               The characters




        Jane



                               Cindy

                                       Bart

                 Prof Gritty
Prof Silber
E-mail was not secure at Sili-Tech
        It was found that:
u Cindy Yardley faked the test results
  of the Killer code
u Johnson told Cindy that the robot

  was safe and all will lose their jobs if
  the robot were not shipped on time
u Randy stole some of his software,

  but admitted he had bugs in his Killer
  code
               Ethical issues
u   Email privacy
u   Professional ethics:
    delivering bug-free
    software
u   Plagiarism-
    intellectual
    property
u   Honor
    confidentiality
u   ACM code of ethics
         Five ethical tests:
        by Kallman & Grillo
u The mom test: would you tell your
  mother?
u The TV test: would you tell your
  story on national TV?
u The smell test: does it smell bad?

u The other person’s shoes test: would
  you like it if done to you?
u The market test: would your action
  make a good sale pitch?

				
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posted:6/4/2013
language:English
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