Ring constraints have been problematic right along. As Kevin mentioned, naming roles is an elixir for a number of referencing problems. Actually, the more things you name, and name well, the better. When the tool does a better job of this, you might need to go back and redo some stuff - but it is CTP after all. Also, be aware that DDL ...
Sorry about the issues you've been running into.
The solution for this one is relatively simply: give one or both of the roles a role name.
Our current behavior when a role doesn't have a role name specified is to use the name of the object type that plays that role instead. This obviously has the drawback of causing duplicate names when you ...
Interesting. I have a External ValueType that is an independent and has three value constraints. Why does that work and the other two do not??
Next problem: There is a duplicate key sequence 'Person'
in the middle of troubleshooting these problems... decided to capture work flow for ya... possible requirements/UI features...
Error Message tells me what row is incorrect in the OIAL.XML file. I dbl click and I find the row.
A couple of rows above that I see the singleRoleUniquenessConstraint name...
Now I want to find the constraint in ...
The architects on the NORMA tool team have very strong OO programming backgrounds, but obviously know ORM and database design issues as well.
Clifford Heath (the fellow that started the Yahoo Group: Information_Modeling), is working on a Ruby on Rails framework using the fact based nature of ORM for application development. He ...
Trying to clean up a substantial model and running into errors on the OIAL.xml file. Did not get these errors when we compiled using Jan CTP. Now using March CTP against same model.
(Aside note for documentation: Need some verbage that says if end product *.sql from build process fails, start looking at why by first clicking on the OIAL file ...
You're right there appears to be a lot that can be done with this tool already, but at some point there needs to be a production tool of some sorts. We switched over from Visio EA to NORMA.
I am a ORM fan as well due to the influence of Prof. Everest at the University of Minnesota.
We have similar interests as I am fascinated by ...
I'm just an innocent bystander! I've been a fan of the theory behind the NORMA framework (Dr. Halpin's fact based modeling, which isn't the only form of Object Role Modeling, but what we are talking about when we talk of ORM theory). I had a couple of the tools developed to utilize ORM methodology; Infomodeler which became ...
We certainly will consider that for future versions. We are just at a milestone with our contact db design, so we need to finish what we started. What we haven't started to model is donations.... that will probably be our next project.
I did follow your recommendation...the upgrade to the lastest CTP went smooth and the solution ...
From what I have gathered, NORMA will/does target XML as an output for the model. After looking into some of the new ADO.NET entity framework concepts.. it would seem if those of us using ORM use the MS modeling tool for EDM, it will be a redundant effort. Since ORM contains the conceptual model it seems natural that NORMA would generate the ERD ...