Status of hierarchical models
IMS
- Early hierarchical model, invented by IBM.
- Started development in 1966.
- Widely used through the 70s (at least).
- Not so much now.
Those who forget history ...
Forty years later:
- MongoDB, Dynamo, Cassandra, CouchDB, ...
- "Documents" which are JSON/BSON objects, which are
hierarchical.
|