Is Synthetic data generation possible for IMS database since the data maker and CA TDM portal cannot directly connect to IMS databases?
Please go through the link of the supported Data sources.
Supported Data Sources - CA Test Data Manager - 4.5 - CA Technologies Documentation
I see IMS 14 supported for Data Generation.
You may also find the following useful.
Defining Test Data Using Datamaker - CA Test Data Manager - 4.5 - CA Technologies Documentation
Please let us know if you need further pointers on this topic.
Retrieving data ...