Deploying cube changes to multiple sites

Hi,

How does one deploy cube changes (say adding a new field into a dimension) into multiple customer databases without overwriting their Kpis?

We have a SSAS application which will snap into our existing application and allow customers to define Environmental, Health & Safety Kpis. Each customer will have different Kpis, so how do we deploy incremental updates, without overwriting those Kpis?

I know we can download a customers SSAS database into a new VS project, and copy the Kpis into an XMLA deployment script, but that is a lot of work for each customer.

What I am hoping to find is something like a SQL Script that makes the schema changes, but does not touch the data (Kpis etc.). Of course, my SQL knowledge has only got me into trouble in SSAS, so who knows.

Thanks,

--Phil

Probably the best approach would be to write a script which uses DISCOVER_XML_METADATA to retrieve the cube's metadata, and then changes the XML my injecting your KPIs and then sending this XMLA script inside <Alter> command.