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Good article on shuttle systems S/W development [message #20128]

Mon, 22 May 2000 00:00

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

Thought some of you might be interested in this - an article about S/W
development at the "on-board shuttle group".
--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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Re: Good article on shuttle systems S/W development [message #20199 is a reply to message #20128]

Tue, 23 May 2000 00:00

Jan Vorbrueggen
Messages: 2
Registered: May 2000

Junior Member

"Norm Clerman" <opcon@fuse.net> writes:

> An excellent article, describing software of a qualilty we all aspire to
> write. I'm sure everyone is interested to know what language the shuttle
> program is written in. Perhaps someone could enlighten us.

It is written in HAL/S, originally developed by a company called Intermetrics,
IIRC. The S is for Shuttle, dunno what the HAL stands for. It is designed to
support real-time and threaded apps, and has in-built functionality for vector
and matrix calculations. There also was an article in the CACM in 1985 or so
on the subject.

Jan

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Re: Good article on shuttle systems S/W development [message #20213 is a reply to message #20128]

Mon, 22 May 2000 00:00

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

Norm Clerman wrote:
>
> An excellent article, describing software of a qualilty we all aspire to
> write.

The thing I liked best about it was the description of how these
coders/managers weren't the hot-shot fly-by-the-pants stereotype that is
portrayed in the media today, i.e. they have a "regular" life outside of
work. After watching the PBS documentary detailing the goings on at
Netscape before they released their code to the world, it sure was nice
to read of a place where they do things right, rather than the "held
together with chicken wire and spit" type of software house. I no longer
get mad when Netscape crashes on my linux box once a day. Now, I expect
it. Same goes for Microsoft products.

paulv
--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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Re: Good article on shuttle systems S/W development [message #20214 is a reply to message #20128]

Mon, 22 May 2000 00:00

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

David Fanning wrote:
>
> Paul van Delst (pvandelst@ncep.noaa.gov) writes:
>
>> Thought some of you might be interested in this - an article about S/W
>> development at the "on-board shuttle group".
>
> Uh, we *would* be, if you gave us a reference to it. :-)

<Insert sound of whip cracking right.....here!>

Yow!

There's always *one*. :o)

--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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Re: Good article on shuttle systems S/W development [message #20217 is a reply to message #20128]

Mon, 22 May 2000 00:00

Norm Clerman
Messages: 1
Registered: May 2000

Junior Member

An excellent article, describing software of a qualilty we all aspire to
write. I'm sure everyone is interested to know what language the shuttle
program is written in. Perhaps someone could enlighten us.

--
Norm Clerman
Opcon Associates, Inc.
opcon@fuse.net
www.opconassociates.com
Paul van Delst <pvandelst@ncep.noaa.gov> wrote in message
news:392936A6.1E44B16D@ncep.noaa.gov...
> Thought some of you might be interested in this - an article about S/W
> development at the "on-board shuttle group".
> --
> Paul van Delst Ph: (301) 763-8000 x7274
> CIMSS @ NOAA/NCEP Fax: (301) 763-8545
> Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
> Camp Springs MD 20746

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Re: Good article on shuttle systems S/W development [message #20219 is a reply to message #20128]

Mon, 22 May 2000 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Paul van Delst (pvandelst@ncep.noaa.gov) writes:

> Thought some of you might be interested in this - an article about S/W
> development at the "on-board shuttle group".

Uh, we *would* be, if you gave us a reference to it. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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Re: Good article on shuttle systems S/W development [message #20225 is a reply to message #20128]

Mon, 22 May 2000 00:00

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

opps.

forgot the link... he he...ehem

http://www.fastcompany.com/online/06/writestuff.html

> Paul van Delst wrote:
>>
>> Thought some of you might be interested in this - an article about S/W
>> development at the "on-board shuttle group".
>> --
>> Paul van Delst Ph: (301) 763-8000 x7274
>> CIMSS @ NOAA/NCEP Fax: (301) 763-8545
>> Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
>> Camp Springs MD 20746

--
Paul van Delst Ph: (301) 763-8000 x7274
CIMSS @ NOAA/NCEP Fax: (301) 763-8545
Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
Camp Springs MD 20746

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Re: Good article on shuttle systems S/W development [message #20263 is a reply to message #20128]

Thu, 25 May 2000 00:00

Jan Vorbrueggen
Messages: 2
Registered: May 2000

Junior Member

mcalhoun@ksu.edu (Myron A Calhoun) writes:

> Isn't "HAL" (which was also the name of the computer in the movie "2001")
> simply "IBM" shifted right one character?

ACC has always denied the connection. Now that I think about it, HAL (as in
the Shuttle programming language) are the initials of its inventor, IIRC.

Jan

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Re: Good article on shuttle systems S/W development [message #20272 is a reply to message #20128]

Wed, 24 May 2000 00:00

mcalhoun
Messages: 1
Registered: May 2000

Junior Member

>> An excellent article, describing software of a qualilty we all aspire to
>> write. I'm sure everyone is interested to know what language the shuttle
>> program is written in. Perhaps someone could enlighten us.

> It is written in HAL/S, originally developed by a company called Intermetrics,
> IIRC. The S is for Shuttle, dunno what the HAL stands for....

Isn't "HAL" (which was also the name of the computer in the movie "2001")
simply "IBM" shifted right one character?

--Myron.
--
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PhD EE (retired). "Barbershop" tenor. CDL(PTX). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)

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Re: Good article on shuttle systems S/W development [message #20273 is a reply to message #20128]

Wed, 24 May 2000 00:00

Mirko Vukovic
Messages: 124
Registered: January 1996

Senior Member

In article <392936A6.1E44B16D@ncep.noaa.gov>,
Paul van Delst <pvandelst@ncep.noaa.gov> wrote:
> Thought some of you might be interested in this - an article about S/W
> development at the "on-board shuttle group".
> --
> Paul van Delst Ph: (301) 763-8000 x7274
> CIMSS @ NOAA/NCEP Fax: (301) 763-8545
> Rm.202, 5200 Auth Rd. Email: pvandelst@ncep.noaa.gov
> Camp Springs MD 20746
>
For my first widget program, I followed the methodology of OO modeling
and design by Rumbaugh, Blaha et al. Somewhat complex, several hundred
lines. The only mistakes were those in variable spelling.

Knuth's book on Literate programming shows his error log for the TeX
program. Very instructional. I decided to keep a similar one for a
later application, and sure enough, I could see patterns in errors I was
making (the most annoying ones were the self-inflicted ones, where by
fixing carelessly one piece, the code would be affected 10 lines down.
However, I eventually got the point, and even those started to go away.

As I read in some book, quick and dirty allways ends up long and
expensive. Even the shortest program will grow into a bigger
application.

My two cents

Mirko

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