We are performing a POC on CA TDM - Tester Self Service ( Data reservation Portal) for one of the largest banks in Australia. From the documentation available on web i can see that test data engineer had to create data mart as
pre-requisite from various data sources and then only testers can reserve the data.
We have data scattered across IMS , DB2 and Oracle Data sources ( Multiple Oracle DB's on different hosts) in the bank.To create a data mart for Data reservation portal do we need to extract the data from these multiple data sources and store a copy in data mart and define relationships or does the tool directly connects to multiple DB's ( including multiple Oracle DB's hosted on different hosts and IMS and DB2 on Mainframes) and pull the data dynamically based on predefined relationships ? Can you also please let me know if the data mart tables had to be created in any specific format ?