Hi,
SAP Master Data Management (SAP MDM) enables master data on customers, partners and products to be consolidated and harmonized across the enterprise, making it available to all staff and business partners. A key component of SAP NetWeaver, SAP MDM ensures data integrity across all IT systems.
Master Data Management (SAP MDM)
http://help.sap.com/saphelp_mdm300/helpdata/EN/2d/ca9b835855804d9446044fd06f4484/frameset.htm
SAP MDM is Data Management System means maintaining record in such way that, MDM is single point of truth for all the system with in Enterprise.
What we do actually in real time is.
First, we do get the data from SAP, Siebel, or Legacy System to SAP MDM.
And; we do consolidate the data in SAP MDM, which we had from different system.
Master Data Consolidation: consolidate the entries on global fields, and re-distribute the data to the original systems. In that scenario NO DATA is created in MDM. The added value is related to the fact that data will be consistent across the corporation. You may imagine that the difficulty here is to figure out which information should "win" in conflict cases. Here you need a good cleansing tool, with relevant matching strategies.
Then, we do Harmonization the data to all the systems using schedule or batch process from SAP MDM.
Master Data Harmonization: here the master data is copied from each client system into MDM. A matching needed in order to identify duplicates, and build the MDM translation tables that will allow to know where the data is, and which records correspond to the same real "object" in your different systems (Key Mapping Tables). In that case each single system just works as before, and the added value of MDM is that you know EXACTLY where you data is, and how many "real objects" you have across your systems.
Central Master Data Management: is the final leap. Here you go again one step further, and you start creating centrally data in MDM, and distribute it to the different client systems.
in SAP only few transactions are available for Master Data Extraction:
MDM_CLNT_EXTR: to extract standard master data in the form of IDOC's
MDMGX : To extract customized master data(custom table data extraction) in to XML file.
Thanks,
Satya
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