With the release of 9.x.67 (referred to internally as just 67) we thought that it was about time we started to talk about some of the functionality that will be included. The first one on the list is Multi-tier synchronization support.

9.1.66 and prior architecture

GO! Sync® takes information from ArcSDE® and delivers it to occasionally connected field devices when they are online.

This functionality has been available for many years now and is in operation at numerous clients. The architecture of this application prior to 67 was 2-tier.

This caused problems for some of our clients with Operating regions and slow WAN connections between them as it means data is sent multiple times from one server over the WAN to each client.

9.x.67 and onward architecture

With the 67 release multi-tier architecture is now supported where changes from the Mobile GIS Server are delivered to Staging Servers. Clients then get their data, configuration and application from the ‘closest’ staging server rather than the Mobile GIS Server.

Note: The two-tier architecture is still fully supported and is in-fact the default configuration even in 67.

Conclusion

With the 9.x.67 release GO! Sync is able to support organizations that have multiple locations and bandwidth considerations between them.

GITA 2007 is over and and I imagine that most people are now home. It was a good conference and although there are less attendees that previous years people are really starting to know what they need from GIS and the good news for Tadpole is that a bunch of people need Mobile GIS.

San Antonio is a great city to visit and to host the GITA conference. The conference hall itself is nice (although it will be good when the construction is complete).

There are plenty of Hotels, restaurants and bars for people to relax at night in.