Re: Help in emulating an Informix form

In article <47e90k$5kb@charm.magnus.acs.ohio-state.edu> apatanka@magnus.acs.ohio-state.edu (Atul Patankar) writes: >From: apatanka@magnus.acs.ohio-state.edu (Atul Patankar) >Subject: Help in emulating an Informix form >Date: 3 Nov 1995 23:35:48 GMT >In our project, the access to the database is from Wyse50 terminals over a >WAN. Each character the user types has to travel all the way to the >application server, get processed and then sent back to the terminal to be >echoed. The local echo is turned off. Over a WAN, this traffic results in a >> 10 character "type ahead" at times. This bothers the users since the next >field they go to depends on the input to the previous field, so they have to >wait for the screen to catch up. The server is not stressed out at those times. >There is no runaway process hogging resources. So we think its the traffic. >We would like to see if we could write this one form on our own. That way we >can use local echo and perhaps reduce some traffic on the WAN Would what you propose help? If I understand you correctly the cursor is taken to various fields depending on the input to previous fields. If so you still depend on the server processing the data to reposition the cursor and the repositioning wil be done via the WAN. Also you still have the same amount of traffic from the TTYs to the server. Will taking the echo traffic out speed up the WAN sufficiently? I would have thought it might be better to put the application processing nearer the TTYs and just run the database traffic over the WAN. This would depend on the TTYs not being geographically dispersed, however. Ian