We are in the process of testing ArcGIS Mobile for some of our field activites. To do this we are using ArcGIS Mobile v10 build 2475 and both out-of-the-box Windows and Windows Mobile OS clients. We are connecting to ArcGIS Server Adv Enterprise v10 SP1.
The feature class we are editing is large: 500,000 features (lines). Despite the FC size the application still performs well in both Windows XP and Windows Mobile environments since most display and editing is done at a large scale. The issue we are having relates to posting the updates from the Windows Mobile client (running on a Trimble Juno SC) via a wireless connection to our network.
Testing:
- When we edit one feature's attributes and post the change from the Windows XP client via a wireless connection with all 500,000 features having been downloaded prior....the process takes 3 seconds.
- When we edit one feature's attributes and post the change from the Windows Mobile client on the Trimble via a wireless connection with all 500,000 features having been downloaded prior....the process takes 40 min.
- When we edit one feature's attributes and post the change from the Windows Mobile client on the Trimble via a wireless connection with only a small subset of features (8km around current location) having been downloaded prior....the process takes 3-4 seconds.
We are trying to figure out why the Mobile application running on the Trimble takes so long to post one change only when we have the 500,000 features downloaded on the device. As we understand the synchronization process, only the changes are posted to the server. For this solution to work the field users/ contractors need the complete dataset loaded (500,000 features) but will only be updating a few features per day depending on where they are working.
Any insight as to what might be causing the excessive amount of time to synchronize one attribute change to the server would be helpful so we can figure out our next steps in this trial.
