What are the network requirements with respect to latency in Forms?

Our company is a global provider of online sourcing, procurement and collaboration solutions and services to Engineering, Procurement and Construction (EPC) projects and companies.
We operate three Internet trading portals with 1000+ buyers & supplier companies around the world.
The application is:
- based on Forms 9.0.2
- use SUN J2SE 1.4.2_0X on the client side
- runs on the public Internet using SSL
- hosted in Norway
Some companies reports about bad response times and the users claims that our application runs slow. The application do not run slowly, it is very responsive - however it requires a good network connection. Upon request from our customer base I need to know what is the requirements for the network in order to achive an acceptable user experience?:
- Maximum lantency
- Minimum bandwith
What where the design requirements Oracle set forth when developing Forms?
There can be a lot of "latency" generating network equipment in the path between the user and our server farm: switches, routers, proxy servers, chaching servers, firewalls, packet shapers, QoS, etc. One customer have all of these goodies and our users in that company do not have fun with the Forms application! However, they do not belive that there is something wrong with the network because normal HTML based sites works OK!
In order to help these customers I need (URGENTLY) to know what the network requirments are?

Its difficult to answer since the limits on latency will be governed by the user expectiation....
For example, a financail trading application which has fast data entry may see a latency of .7 second as not acceptable but this would be fine for an HR application.
The thing is that a user action, such as navigation between fields, wil generate a round trip to the application server to check for triggers (regardless if there is a trigger to file or not). Its this behaviour that gives Forms is very rich productive interface.
To compare with HTML is not reasonable since HTML can't do all these things like instant validation, masterdetail coordication, scrolling etc that Forms can do...
Its like complaining that your Sports car uses more petrol that your 50cc moped!!! ;o) It uses more petrol because its doing so much more.... Ok, I digress but you get the idea.
Forms will require a certain level of network performance. the figures for that performance will depend on user expectation/scenarios, the type of application and the way it is written (a badly written Forms application can still run slow even on a fast network).
Using network tools you can work out the latency (ping) from client to server. If this result comes out a figure which is not acceptable then no amount of tweeking of Forms will get it to run faster...You either need to upgrade the network to improve this; or change the style of application (e.g. to and HTML application) which will only ping the server on a POST/GET request but you lose a huge amount of functionality...and you need to ask your end users if they can live with that.
Hope that helps.
Grant Ronald
Forms Product Management

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