I was referring to the help in Rose 2001. Yes several of the items
I mentioned are not there in 2000e. 2000e was the first release of
the Data Modeler, and if you are working with the data modeler it
is strongly recommended you upgrade to 2001. Quite a few bug fixes
and ehancements, not to mention additional help files, have been
included in 2001.
Rational Rose - patches and upgrades
http://www.rational.com/support/downloadcenter/upgrades/rose.jsp
...
> By this am I to infer that data types should be defined on the class diagram?
You can go either way, depends upon whether you are starting off modeling
classes or starting with a Data Model. Usually I would thing you would
start on the Data Model.
...
> We may decide to implement collections, object tables ad object views as the
> project moves along
Unfortunetly at the moment the two (o8 addin, DM) don't mix.
o8 addin features are slated to be rolled into the DM addin, but I have
no timeframe when this might happen.
Patrick Kennedy
Rational Support
On Mar 23, 9:50, Naushaba Mumtaz wrote:
> Subject: Re: (ROSE) ROSE: Generating a DDL script
> Thanks for the reply, please see my response tagged by <ABBY>. I should
perhaps say once again that we are piloting this project and as with everything
new there are no guidelines or best practices established. That is one of the
reasons I have tuned to this forum. I do appreciate your patience.
>
> 1. Where does one specify the attribute data type & prescision targeted to
> the Oracle database(e.g. Number(15,2), Varchar2(50) etc)- in the class
> diagram or the data model diagram?
>
> If you specify type on class they will get map to DB type when
> you transform to data model. Mapping depends upon language of class and
> DB. see online help, Transforming an Object Model to Data Model - DM,
> At the bottom of this page are links to the mapping for various
> Databases. Also you can override this mapping using Domains (feature
> in 2001, not 2000e).
>
> <ABBY > Thanks for the pointer � I had already read it. The link at the
bottom of the page refers to �Transforming Object Model Elements � such as an
attribute maps to a column, an association maps to a relationship etc and does
not talk to any database mappings. There is however one sentence elsewhere
�Datatypes are transformed to appropriate target DBMS datatypes�.
> By this am I to infer that data types should be defined on the class diagram?
<ABBY>
>
> 2. Are there any guidelines describing how much information should be
> entered in the class diagram as opposed to the data model diagram?
>
> Best place to start for this is again online help.
> Working with Object Models - DM
> <ABBY> Good enough but I would still like to hear some real life opinions
<ABBY>
>
> 3.Is it recommended to import Oracle8 scalar data types and use them in the
> class diagram itself?
>
> If using the Data Modeler addin you will not want to use the Oracle8
> Scalar types. These are for the oracle8 addin. The difference between
> these two addins are whether you are using the object oriented features
> of o8 or not (nested tables, custom types, object tables, etc.). If
> using OO you need to use the o8 addin. Otherwise for strickly relational
> constructs, use the DM addin.
> <ABBY> We may decide to implement collections, object tables ad object views
as the project moves along <ABBY>
>
> 4. I tried to define a global domain package containing oracle domains to
> use in the class diagram but could not find any documentation on how exactly
> to do them
>
> Documentation is online:
>
> Domains - DM
> Create a Domain Package
> Create a Domain
> Working with Domains
> Building a Data Model
>
> If something is unclear in here, what?
>
> <ABBY> I can�t find the above mentioned topics in Rose 2000e, maybe they
exist in 2001 <ABBY>
>
>
> Thanks,
> Abby
> ===============
> Patrick Kennedy
> Rational Support
>
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>-- End of excerpt from Naushaba Mumtaz
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