@@ -378,3 +378,9 @@ As of the M25 (March 2025) release, the Meta block of the content schemas is use
However, this Meta block in the DDMS content schemas does not contribute to the "normalization" of any units of measure in the RAFS DDMS. The RAFS DDMS does not today do unit of measure normalization. (If normalization is needed today, it can be done by the consuming application.) It is possible that in the future, the RAFS DDMS will do unit of measure normalization like the Core Services do with catalog schemas; That question is under discussion at this time.
You can read more about how the catalog schemas using this "meta" block and how it relates to normalization in the OSDU Core Services [here in the OSDU Schema Usage Guide](https://community.opengroup.org/osdu/data/data-definitions/-/blob/master/Guides/Chapters/04-FrameOfReference.md)(Frame of Reference section).
### 13. Does the RAFS DDMS store its content (Parquet files) in the OSDU generic/core storage or the RAFS DDMS's local storage?
The storage is all in the same cluster as the rest of OSDU. But the DDMS sets up its own "bucket". Credentials come from the OSDU Partition Service. (This is the same approach as the Wellbore DDMS, as of March 2025.)
Note that in some previous experimental versions of the RAFS DDMS, this DDMS took a different approach: It used the "Dataset" group-type schemas to store the RAFS DDMS content using the OSDU core services. However, partially due to performance, and partially due to DDMS architectural principles (i.e., that DDMS content should only be accessible via the DDMS), this approach was abandoned.
