Thank you very much for the links.

I have read them (the links) and now i know what a database dictionary is...

But i still have a problem , i do not have created the extended properties in the tables when i designed the database...

Isn't there a tool or a way in SQL Server to create a script that fills this extended properties with the information about the tables and the column in it, so i can then generate the dictionary?

My extended properties are in blank (no informaiton)

I have Erwin 7.1 , visio 7 and management studio as tools. Does any of this tools can generate information so i can then receive the datadicionary?

Thank you.