Same old same old
You end up capturing the same information - only capturing it in an Object-Relational Meta Model gets you one more level of detail and allows you to automate a bunch of code such as schema definition language and object mapping code. In my extension to GLORP library, I automatically reshape the existing classes everytime a meta model (and database connection) is opened if it detects changes.
The difference is that using the visio toy, you just end up with pictures and files. You'll still be stuck writing all the software.
"Whenever you find you are on the side of the majority, it is time to pause and reflect" --Mark Twain
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them." --Albert Einstein
"This is still a dangerous world. It's a world of madmen and uncertainty and potential mental losses." --George W. Bush