I am looking for experiences and information about implementations of MDM that have repositories with multiple millions of records. In this case, the "customer book of record" is being transitioned from a legacy non-SAP system to R/3 and MDM is being analyzed as a way to manage fields that do not exist in standard R/3 but are needed during the period of time that the legacy app must be supported.
<b>1) Is MDM mature and scalable?
2) What are the issues with performance and features?
3) Are there implementation "gotchas" that are likely to trip up the unwary for large implementations?
4) Are there any experiences between using MDM compared to using the "Golden Client" approach for master data.</b>
Thanks for your time,