On Sun, 27 Jan 2008 13:17:56 -0500, D Herring
<dherring@[EMAIL PROTECTED]
> wrote:
>quasi wrote:
>> On Sun, 27 Jan 2008 17:19:12 GMT, rjf <fateman@[EMAIL PROTECTED]
> wrote:
>>
>>> Vladimir Bondarenko wrote:
>>>> ----------------------------------------------------------------
>>>>
>>>> Our little demo continues..... Hello again from the VM machine
>>>> which hopefully soon will not be ignored by CAS manufacturers.
>>>>
>>>> ----------------------------------------------------------------
>>>>
>>>> N[Integrate[Sin[z] BesselJ[1, z]/Sqrt[z + z^2], {z,0,Infinity}]]
>>>>
>>>> 0.800192
>>> This little demonstration illustrates how NOT to do re****ting of a
bug.
>... [good stuff snipped]
>>
>> I disagree.
>>
>> A bug is a reproducible erroneous output.
>>
>> No need to debug it.
>>
>> No need to find an explanation.
>>
>> The users who find the bug are the _customers_, not the employees.
>> Simply re****t it and let the CAS vendor's sup****t people take it from
>> there.
>
>But here's the rub.
>
>If you or I or any other random user finds a bug, we can say "I'm just
>a paying user -- the devs should ferret out the cause so I can get
>back to doing what I paid for."
>
>VB claims to be more than that -- he claims to be a #1 tester of CAS
>software. Such a person is expected to not only find bugs, but submit
>quality bug re****ts. But he rarely does that; his re****ts are
>generally "ooh look; this didn't work as I expected" with little or no
>analysis. And sometimes they show his expectations to be out of line
>with reality (e.g. floating-point problems are here to stay).
>
>There's a normative difference in the source of these bug re****ts.
You may or may not like Vladimir's way of presenting bugs, but there's
no question in my mind that his automated system is of great value,
both as a warning to naive users, and as a provocative challenge to
CAS developers, forcing them to take seriously
(1) the need for a redesign which incor****ates (and optionally
enables) QA checks into the running code of the CAS
(2) the need for a fully automated QA testing suite
quasi
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