Progaramming: how to add a gui front end to a CL command?
Pete Holsberg
pjh42 at pobox.com
Mon Aug 6 22:50:38 UTC 2007
Karl Auer keyed the following on 8/6/2007 11:42 AM:
> On Mon, 2007-08-06 at 08:21 -0700, Matthew Voss wrote:
> > If there is no benefit for your self than make sure you pick the
> > right command and do it for some one else. Though, your right, it
> > would be of no use to the person who wrote it!
>
> This just isn't true. For complex command line programs, and even
> some quite simple ones, the GUI makes it easier for the guru and the
> neophyte alike. By preventing (or warning about) bad combinations of
> arguments, or by sanity-checking parameters, a GUI can help an
> experienced user avoid mistakes, just as it helps the new user avoid
> them.
>
> Think about it - why do we write scripts? To condense a complicated,
> error-prone sequence of commands and parameters into a simple,
> easy-to-execute unit. We can forget the complexity and use the power.
> Only the most masochistic guru would typeout all those commands in
> full every time. The tradeoff is flexibility - typically a script
> does only a very limited subset of all the things the individual
> commands might be able to do.
>
> A GUI does pretty much the same thing - it reduces complexity and
> protects against error. The tradeoff is time - it is as flexible as
> the command line, but it takes longer to get the results, and
> (usually) has no facility for repetition of the same input
> parameters, so it is slower on repetition, too.
>
> So when we need maximum flexibility with maximum protection from
> error, we take the GUI and trade off repetition and time. When we
> need maximum power and maximum speed (or high repeatability), we
> trade off flexibility and take the custom script. When we need
> maximum power and maximum flexibility, we run the commands ourselves,
> trading off speed (because it takes longer to get them all right and
> type them all in, and we have to do it all again if we want to repeat
> the operation).
Finally! Someone who understands!!
--
Pete Holsberg
Columbus, NJ
When I die, I want to go peacefully in my sleep like my grandfather --
not screaming like the passengers in his car.
--Author Unknown
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