Data modeling tools

List of data modeling and database design tools.

Data catalogs

List of data catalogs tools

Data dictionary tools

List of tools that enable design and building of data dictionaries.

Business Glossary tools

List of tools that help build, maintain an share business glossaries.

Database design tools

List of tools that allow for the design of a database.

Database diagram / Reverse Engineering tools

List of database ER diagram (ERD) / schema visualization / reverse engineering tools for popular databases.

Metadata Management tools

List of metadata management tools

Version control tools

List of source version control tools for databases.
State-based tools - generate the scripts for database upgrade by comparing database structure to the model (etalon).
Migration-based tools - help/assist creation of migration scripts for moving database from one version to next.