> tools to manage Data Architecture & Modeling for HBase To aid visualizing table structure, you could use Enterprise Architect
Even though HBase cells store BLOBS, quite often these BLOBS are serialized classes. In EA classes can appear in table definition as field types. It is possible to put a mix of table definitions, class definitions (and a number of other diagram items) on the same diagram. EA probably won't generate HBase DDL or DML code for you. These diagrams are however useful for visualizing, documenting and discussion. I am not familiar with Powerdesinger or ERWin so can't comment on these.