Hi Jamal,
I think you replied to the incorrect thread, your post really belongs in this thread:
The best practice to plug the “utility network analyst” in web mapping applications,
(I've referenced the thread for context for others who review this thread)
> The first challenge here is how to publish the whole functionalities of “utility network analyst” before going to enjoy also editing with full environment as in the desktop. For example, how to solve for all tracing options in the web?
You would publish the various geometric network utility tools as Geoprocessing Services. Please review the help topic,
Hope this helps,
Thanks Derek
best
Jamal