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- Newsgroups: sci.space
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!ames!sun-barr!cs.utexas.edu!tamsun.tamu.edu!summa.tamu.edu!i0c0256
- From: i0c0256@summa.tamu.edu (IGOR)
- Subject: Re: Man in the loop
- Message-ID: <11NOV199218005538@summa.tamu.edu>
- News-Software: VAX/VMS VNEWS 1.41
- Sender: news@tamsun.tamu.edu (Read News)
- Organization: Texas A&M University, Academic Computing Services
- References: <sf0L7wq00iV0M5s30N@andrew.cmu.edu>
- Distribution: sci
- Date: Thu, 12 Nov 1992 00:00:00 GMT
- Lines: 37
-
- In article <sf0L7wq00iV0M5s30N@andrew.cmu.edu>, Lawrence Curcio <lc2b+@andrew.cmu.edu> writes...
- >Well it's strange, ain't it. Whenever there's a slow decision to be
- >made, the responsibility in a human-machine system is given to the
- >human, figuring the machine will make a mistake. (That's why we have
- >decision *support* systems instead of decision *making* systems.)
- >Whenever there's a fast decision to be made, as in fly-by-wire and
- >nuclear power plant control, the responsibility is given to the machine,
- >figuring the human will make a mistake.
-
-
- Actually one is giving control to the machine so that the human can
- THINK about what is going wrong. Most of the research in specific accidents
- such as Loss Of Coolant Accident (LOCA) are studied in a way to allow the
- operator a safe margin of time to see what he can do to stop the whole process.
-
- >
- >It's true that the human is always given the last word, but then if you
- >look at nuclear power plant accidents, they seem to occur most when the
- >human intervenes.
-
- While it might be true for the Chernobyl disaster, for Three Miles
- Island accident even the machine
- could not do anything since they were not designed to handle this huge hydrogen
- bubble.
-
-
- >
- >Bottom line: Never trust a human, and never trust a machine.
- >
- >
- Better : Never trust a bad design (TMI), Never trust an efficient design
- (Chernobyl) :-)
-
-
- Igor
- Nuclear Engineering Department
- Texas A&M University
-