LISTSERV mailing list manager LISTSERV 16.5

Help for AFRIK-IT Archives


AFRIK-IT Archives

AFRIK-IT Archives


AFRIK-IT@LISTSERV.HEANET.IE


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

AFRIK-IT Home

AFRIK-IT Home

AFRIK-IT  April 1998

AFRIK-IT April 1998

Subject:

Re: Y2K 101

From:

Vincent Wright <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Sat, 4 Apr 1998 19:28:19 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (65 lines)

Great, Patrick!
Thanks,
Vincent

Patrick O'Beirne wrote:

> At 15:11 03/04/1998 +0200, you wrote:
> >What research do I need? I turn the computer off, and on again and set
> >the date in the BIOS if need be. :-)-O (This is the short version of
> >it, of course :-)-O)
>
> Very short indeed. It omits the whole question of whether the _software_ works.
>
> I know you know this, but for the benefit of those less experienced than
> you, here is Y2K 101.  The "you" in the following is the generic "dear reader".
>
> Using two digits for the year will cause software that worked for 97,98, and
> 99 to fail when those digits are compared or calculated with 00.
>
> This is a software problem. It is only a hardware problem where the hardware
> contains embedded software. A failure in date derived from hardware may or
> may not matter, it depends entirely on how it is being used. Automatic
> processes that act without giving the user an opportunity of intervention
> can be things like PIMs, backup schedulers, process control systems, and so on.
>
> It is completely predictable whether software will fail - you just need to
> have it tested for all the date functionality; e.g. date comparisons,
> database selections, age calculations, end of periods/years, etc.
>
> If you do not test, or rely on trustworthy guarantees where you cannot test,
> one of two things will happen to you between now and 2000.  Either the
> software will not fail, in which case you have no problems - no thanks to
> you. Or it will fail, and you will have the utter certainty of knowing that
> the consequences are entirely due to your negligence, as you knew of the
> possibility and did not check.
>
> If you do validate the software, you have demonstrated due diligence and
> should proceed to help others less informed than yourself; especially if you
> depend on them. None of these problems may apply to you, but they may apply
> to someone that you know.
>
> You cannot make any assumptions. It is possible to write logic in any
> language that will fail to handle 00 dates. This includes user-developed
> applications such as databases and spreadsheets. In my spreadsheet
> workshops, I demonstrate one way of entering dates that is always safe and
> unambiguous; one that treats any two digits as always 19xx; and one that
> shows a person's age as 69 when the spreadsheet is opened in Excel 95 but
> -31 when opened in Excel 97. Most users will not have those problems, but
> that is no comfort to those who have.
>
> If you have common off-the-shelf packages, an upgrade may or may not be
> required - you have to check. If you have customised or once-off
> applications, you may have to have it repaired, re-engineered, or retired -
> you have to check, nobody else can.
>
> Best wishes,
>
> Patrick
>
> -------------------------------------------------------------
> Patrick O'Beirne B.Sc. M.A. MICS. Year 2000 & euro Consultant
> PSP, TickIT, Year2000 assessment on PCs, euro(EMU) conversion
> http://www.iol.ie/sysmod    Tel: +353 (0)55 22294  Fax: 22297
> Systems Modelling Ltd, Tara Hill, Gorey, Co. Wexford, IRELAND

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

January 2012
December 2011
November 2011
March 2011
February 2011
January 2011
September 2010
June 2010
May 2010
April 2010
March 2010
February 2010
October 2009
September 2009
July 2009
June 2009
March 2009
February 2009
January 2009
November 2008
October 2008
August 2008
July 2008
April 2008
March 2008
November 2007
August 2007
July 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
November 2005
October 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003
December 2002
November 2002
October 2002
September 2002
August 2002
July 2002
June 2002
May 2002
April 2002
March 2002
February 2002
January 2002
December 2001
November 2001
October 2001
September 2001
August 2001
July 2001
June 2001
May 2001
April 2001
March 2001
February 2001
January 2001
December 2000
November 2000
October 2000
September 2000
August 2000
July 2000
June 2000
May 2000
April 2000
March 2000
February 2000
January 2000
December 1999
November 1999
October 1999
September 1999
August 1999
July 1999
June 1999
May 1999
April 1999
March 1999
February 1999
January 1999
December 1998
November 1998
October 1998
September 1998
August 1998
July 1998
June 1998
May 1998
April 1998
March 1998
February 1998
January 1998
December 1997
November 1997
October 1997
September 1997
August 1997
July 1997
June 1997
May 1997
April 1997
March 1997
February 1997
January 1997
December 1996
November 1996
October 1996
September 1996
August 1996
July 1996
June 1996
May 1996
April 1996
March 1996
February 1996
January 1996
December 1995
November 1995
October 1995
September 1995
August 1995
July 1995
June 1995
May 1995

ATOM RSS1 RSS2



LISTSERV.HEANET.IE

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager