The tool ‘Consistent Delta Migration System’ (CDMS) will focus on making the SAP ERP Quality system (created using Test Data Migration system (TDMS)) consistent.
SAP Test Data Migration Server (SAP TDMS) is used for creating and refreshing non-production systems (particularly test systems) with a reduced dataset.
some of the key features of SAP TDMS are
When you replace numerous full copies of productive clients by reduced clients created by TDMS, this significantly saves disk space and administrative costs (which are in proportion to your system size). Yet, you will have additional effort and costs caused by
When you create new clients with production-like data, the benefit will be an improved quality of test data because target-oriented and reduced test data will be provided. This will lead to cost savings due to more efficient and quicker tests as well as a better quality of developments.
As mentioned, the common method of test system creation is to install a copy of the production system on the test machine – and besides the huge hardware requirements, a lot of manual work needs to be done until the system can be made available for the users
TDMS helps in avoiding all the manual work and almost all the post processing activity are minimized.
SAP TDMS operates at client level, that is, the selected data from a client in the sender system is copied to a client in an existing system (non-production system).
As mentioned TDMS transfers data from all the modules of SAP to the quality system, therefore the quality system is approximately 90-95% consistent.
In either of the two mentioned cases, ‘Consistent Delta migration system’ will transfer the delta from the production system to make the TDMS created system as consistent.
The below mentioned figure explains the normal processing of data migration using TDMS.
Unlike TDMS, the re-transfer will be initiated from the receiver system.
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