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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