IMS
From CICS Wiki
I'm not a IMS specialist.
IMS is a hierarchical database and provide a big performance. 10 years ago it was almost dead but since the last years IBM invest some money to improve IMS among their DB2 product. Seems a lot of large clients still run IMS for some reason and they have some power.
More about IMS is welcome. Just try
Roland 16:13, 4 November 2007 (CST)
