Tool for online viewing of DB relational model

Hello guys,

Can you please advise me what tool to use for my task?
I am working in offshore software development company (around 20 developers). We are developing online financial system working with Oracle DB. Primary development is done with Ruby/Ruby on Rails and database structure is created/updated with Ruby migrations (well, I'd say those are scripts to create/update DB structure, the scripts are implemented with Ruby). DB structure is pretty complex including around 150 tables.
Anyway, what I need is to see overall DB structure (DB relational model) as a graph. I can use some modeling tool, like Embarcadero ER Studio or Oracle Designer, to reverse engineer database and view it as a graph. But, then, either other developers who want to see up-to-date DB graph will have to do the same or we need to share this graph somehow (which will raise a question who is in charge of regularly updating the graph). That is not convenient. So, I wonder, possibly there is a an online tool which we can install on our internal Web server showing DB structure as a graph (of course automatically updating it when DB structure changes). We also would like to have online DB related collaboration tools too, but this feature is a MUST.

Best regards.
Konstantin.

CA ERwin® Data Modeler

Toad® Data Modeler

Or check here for more data modeling tools.

Or Google "database modeler"!
:p

This is what happens when you put the carriage before the horses.

Let me break some news, the one who designed the database is the one that would let you know how navigation works.

Not sure how it works in an "offshore software development company" but in my book developers do not make changes to database design.

Quote:

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Originally Posted by PAVB

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Not sure how it works in an "offshore software development company" but in my book developers do not make changes to database design.

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This is an excelent point by Paul!

Changes should be made to the database model FIRST by Architect or DBA and then applied to the database after somehow testing in dev/test environment.
:p

Quote:

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Originally Posted by PAVB

This is what happens when you put the carriage before the horses.

Let me break some news, the one who designed the database is the one that would let you know how navigation works.

Not sure how it works in an "offshore software development company" but in my book developers do not make changes to database design.

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I must have not made it clear enough. I do not want developers to make changes. I want developers to SEE current database relational model online. This way we would not have to reverse engineer relational model with tools like ERWin just to see updated model.

I see, well... now I'm really confused.

If you guys are doing things the right way and have tools like ERWin why don't your architect just makes available the last version of the db model for everybody to see?

Quote:

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Originally Posted by PAVB

I see, well... now I'm really confused.

If you guys are doing things the right way and have tools like ERWin why don't your architect just makes available the last version of the db model for everybody to see?

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Yes, all the "architect" need to do is once in a while click on the "(re)sync database" option in Erwin. :p
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