To: | "[ontolog-forum] " <ontolog-forum@xxxxxxxxxxxxxxxx> |
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From: | "Schiffel, Jeffrey A" <jeffrey.a.schiffel@xxxxxxxxxx> |
Date: | Tue, 1 Apr 2008 13:49:52 -0500 |
Message-id: | <ECF42862FCA16D41BFA98F8C45F09554046FA18A@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
Butsoftware does wear out. There are two general
cases, running systems and fitness for use. Aging symptoms in running software
are found in such failure modes as memory leaks, memory fragmentation leading to
slowed task execution, excessive paging, calculation error accumulations, and
unexpected branching. These apply to both applications and operating system
software. Degradation or outright failure is the outcome. Whatever the cause,
the problem may be fixed by halting and restarting/reloading the software, at
least temporarily. Fitness for use includes items such
as maintainability, tools support (everyone still have their DOS diskettes?),
changes in the operational environment, languages falling into disuse, changes
in user expectations, and bloated software after many patches. These either
increasingly trigger failure modes or otherwise make the software economically
unsuitable. The difference between software and
the underlying mathematical structure – e.g. algorithms and logic -- must be
distinguished. The software can age and become obsolete. The underlying
logic probably does not, although the
subject for the applied logic might become dated. -- Jeffrey
Schiffel > From Vishesh
Duggar > Hi
All, > When software no longer
fits the user's need, indicates that the needs of the user
have > changed. But does it mean
that the software is unusable because of long or heavy use.
> Hence the initial
definition that software does not wear out sounds correct. Because it
> doesn't matter how heavily you
use the software it will never wear out. > ~Vishesh
Duggar >> Schiffel,
Jeffrey A wrote:
>>> >>> Hi
all, >> I've heard that
definition, but software does wear out. When it no longer fits the user's need,
>> it is wearing out. Software, like everything else in the
physical world, obsolesces over time. >> -- Jeffrey
Schiffel _________________________________________________________________ Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/ Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/ Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx Shared Files: http://ontolog.cim3.net/file/ Community Wiki: http://ontolog.cim3.net/wiki/ To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx (01) |
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