RE: Why NOT the web?

["Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>]

> From: Walden H. Leverich
> 
> >Assuming a LAN connection for an ERP is outdated thinking.
> 
> I meant "LAN" as opposed to "the internet" -- fair that I went too far
> with the ethernet statement. Still, the general premise holds -- in
> situations where we currently have green screens we probably have
> sufficient connectivity to support HTML screens.

Absolutely not true.  A 28Kbps dialup is about 4K bytes per second.  A
typical 2K 5250 screen (and you can go a lot lower with proper use of
PUTOVR) takes roughly half a second, which is right at the user
threshold for latency -- longer than that is no longer "instantaneous".
The same amount of data on a browser from A TYPICAL HTML GENERATOR will
usually be about 15-20KB, nearly 10 seconds in transmission time.  Some
particularly fat ones like WebFacing can generate 100KB or more.  This
is for your typical remote dialup or a wireless user.

The only way to get 20KB down to a half second is to have a REAL
connection rate of over 300Kbps (remember that comm speeds are BITS per
second, not BYTES per second).  That's a relatively high-speed SDSL
line.  And if for any reason you're using something that generates hog
pages in the 100KB range, you'll need a 1.5Mbps line just to keep from
napping during the application.

Joe