Re: Green-screen versus browser -- MIDRANGE-L

This is true from experience in the real world - saying it in CAPS does not make it NOT TRUE. What I said was: "generally iSeries customers find it requires heavy iSeries resource usage for a significantly slower user response time".

Regarding "heavy iSeries resources", you agree with me when you say "require about 500MB of dedicated memory". Add to that the CPW requirements. When you are being sold WAS from IBM, you are always told that it has a minimim requirement of 300CPW or 500CPW - depending on model. For a LOT of iSeries customers, this is a ~significant~ resource requirement and can cost tens of thousands of dollars - along with the additional memory.

I said "IBM has offered various graphical user interfaces" and then "for a significantly slower user response time". Even IBM admits that Webfacing will cause the response times to be reduced. Neither have they sold HATS as a way to improve the response times. WAS has historically reduced performance so often, that many iSeries customers won't go near any new version.

You may be able to improve response times with your technical hands on solution, however, most CxO will not see or hear about your solution when they are talking to IBM.

----- Original Message ----- Subject: RE: Green-screen versus browser

This is simply NOT TRUE.  A properly designed web application written
primarily in RPG with a JSP interface can deliver response times very
nearly equivalent to green screen -- and certainly far better than the
"significantly slower user response time" you state.  On a LAN, browsers
provide sub-second response time, and usually the same on all but the
slower WANs.  Even with dial-up, a well-written JSP application can
provide a response time from 1-3 seconds.

As to the concept of "heavy iSeries resource usage", this too is a
misnomer, though with a little more factual basis.  A proper WebSphere
installation will require about 500MB of dedicated memory.  While not
cheap on the iSeries, it's not prohibitively expensive either.  And if
it is indeed too expensive, the WAS portion can be offloaded to an
attached dedicated PC.

Joe

From: Trevor Perry

IBM has offered various graphical user interfaces - most of which use
Websphere Application Server to deliver the user experience. Websphere
Application Server on the iSeries is in its infancy stages, and

generally

iSeries customers find it requires heavy iSeries resource usage for a
significantly slower user response time.