Need Suggestion On Real Time Data Accees

Hi,
Our application (let say A) runs on * 8.1.7.4.0*
Another Application (let say B) runs on *10.2.0.4.0*
Both the application A and B exchange data through DB links.
Both the application A and B perform select and DML on other tables.
Application A has views (approx. 10 views) on application B 's table through DB links.
Application B also has views (approx. 50 views) on application A 's table through DB links.
Application A has store procedure (approx 10 SPs) through which it does insert/update on two of application B 's table approx 15K call of that procedure per day.
Application B also calls some of the application A 's procedure to insert/update data in application A 's table.
Currently both the application's data center are at the same place. But, there is a proposal/need to move application B's data center far away from the current location. Because of these we are in a assumption that DB Link over WAN will create performance issue and searching of probable replacement.
After of couple of discussion we have identified approx five application A 's tables which are frequently accessed by application B and expect real time data.
Similarly, Application A expect real time data from two application B 's table.
'Golden Gate' mechanism came in our discussion, butt it's expensive,
Can we replace this store procedure code/dml with web service call or so ??
Can anyone suggest ... what kind of approach we should take here ?

Views which are residing in application A 's side use many internal tables and one or two application B s table.
I don't have idea on 'multi-master replication ' ... is it two way replication ..? ... you aware of any documentation I can refer ..? How costly it is (if you can give an idea) ?
Also, among many tables we need near real time (2 mins interval) replication on 5 tables.
MVs again have dependencies on DB link, which exactly what are trying to replace (assuming performance issue)
With fast refresh (let say 2 minutes interval) method on MVs do you think it could cause performance issue specially when data center are at different location ?

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I would advise starting off with the "Cont Acq&Graph Voltage-Int Clk.vi" example which can be found in the example finder under Hardware Input and Output > DAQmx > Analog Measurements > Voltage. Here you can experiment with acquiring your sensor data and graphing it. Once you are successfully acquiring this in the manner which you desire, you can begin to look at the post processing stage and subsequent output signals.
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Attachments:
BexusII_groundstation.vi ‏46 KB

I have a valid example data file attached to this thread.
If you open BEXTEST.bin in a hex-editor of your choice, you'll see the BEXUS as 42 45 58 55 53 and then the time as 00 28 09 etc.
I couldn't get Joe Guo's VI to work. It doesn't count packages correctly, and the time is not displayed correctly either.
The file was saved using a straight save to file VI.
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I have a spare T-junction, so I can hook into the balloon real-time data as we fly, in case anyone care to see if they can figure out why the latest version of Joe Guo's program is not displaying correctly.
I will monitor this
thread during and after flight to see if anyone can make it in time!
Thanks for the great effort!!
Attachments:
bextest.bin ‏53 KB

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Need Suggestion On Real Time Data Accees

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