Messages

1

General Board / Re: FK association arrows - how to remove them

« on: September 28, 2010, 12:41:27 am »

What's wrong with the arrow? Why don't you want it to show?

Well, for one, the official FK documentation makes it appear as though creating FK relationships can be done without arrows.  And, more importantly, arrows are not part of the standard notation in common data modeling tools.  

It seems to me that the cardinality noted on either side of the relationship along with the labels is sufficient to convey the FK relationship using UML notation.  The arrow does not add any additional information IMO, so I'd rather change the direction to "unspecified".

2

General Board / Re: FK association arrows - how to remove them

« on: September 28, 2010, 12:34:06 am »

If the property is greyed our check the diagram, source, and target are not locked for change.

I'd be interested to know how you go with maintaining foreign keys, ease of use etc

S

The elements on either side of the assoc are not locked.

I'm not sure I understand the maintaining foreign keys question.  We are using EA as our data modeling tool so we need to create FKs to indicate the proper relationships among elements in the model.

3

General Board / FK association arrows - how to remove them

« on: September 25, 2010, 02:03:25 am »

I am using EA 8.0 for data modeling.  When I create a FK according to official EA directions I get an arrow on the target end of the association.  Yet the documentation reference (http://www.sparxsystems.com/enterprise_architect_user_guide/modeling_languages/create_a_foreign_key.html) shows no arrow.  I do not want the arrow but cannot figure out how to remove it. The direction property is grayed out, i.e., not editable. Anyone have a fix for this?