Can anyone please provide information on how to build open web services UI to retrieve the records from ATS server as similar way like ATS UI does.
The source code for the example used in the ATS Operations guide should also be available as part of the ATS installation package. Please ask your ATS admin to check the 'demo\XMLConsoleApp' folder of their installation package.
Have you referred to Chapter 16 of the ATS Operations guide?
I am not an ATS expert - but according to the above you should be able to do the following with the Open Web Services interface:
Login / logout
Get a list of BUs (for administrators)
Get properties of BU
Get a list of containers in BUs
Get records and models in containers
Get a list of records and models in BUs
Create, modify and delete records and models
The document includes details of the HTTP Endpoints to call to perform the above and the JSON response details etc.
It also talks about a sample app called XMLConsoleApp and includes sample XML files used to Create Records etc.