I'm in the process of creating my first data model using ORM and have some general questions regarding the use of subtypes. The UoD: A chain of bicycle stores...
Hi Ken Here are some suggestions. 1. Yes, it's OK to use subtypes here, assuming you can define them in terms of existing fact types, e.g. Category (belongs to...
Kenneth, You can use subtypes. This is a rather static structure and may not be to your liking. Yes, each subtype must have one associated fact - if a subtype...
Terry and Patrick, Thank you both for your prompt and informative replies to my questions. I greatly appreciate your help! While you've confirmed some of my...
Patrick - Please post the flexible model here. I would like to see it to. Thanks. Martin Gottlieb Schering Plough-Research Institute ... From: kennethcoakley...
Gottlieb, Martin
martin.gottlieb@...
Jan 3, 2003 8:36 pm
1347
Hi, I am new to ORM, and I am currently reading Terry Halpin's excelent book on the subject and looking forward to apply it on my future projects. I am having...
Hi Marcelo Thanks for your kind words about my book. The answers to the odd numbered exercises are on the Companion site for the book, accessible by two cilcks...
I have a spanking fetish and I am looking for someone who enjoys giveing and getting spanked as much as I do. I turns me on more then you can belive If you are...
WOW is ORM really neat!!!! Is this message from you, Pat.... Bless my soul.... Never knew you were that way..... Mike G ~~~~~~~~~~~~~~~~~~~~ ... ...
Michael M. Gorman
mmgorman@...
Jan 14, 2003 12:45 am
1351
I guess we have to go back to a moderated form. Pat Patrick Hallock InConcept Partner path@... Journal of Conceptual Modeling www.inconcept.com/jcm ...
To avoid Yahoo! following your actions when off Yahoo!, read below and then click on this link: http://pclick.yahoo.com/p?optout Note that you must opt out on...
Hi All, I've used ORM to derive a programme logical data model (LDM) for a client. So I've now got a ORM conceptual data model (CDM) and an LDM as an entity ...
Chris Bruce
chris@...
Jan 23, 2003 2:35 pm
1354
Subject: [JCM] Reuse of ORM Models ... given ... The answer is all over the board. We prefer to keep the ORM model and make all future changes in ORM and...
Patrick, You are so right about the answer to the first question being all over the board. I've generally found as a rule of thumb that the ORM helps us...
Hi Patrick, Thanks very much indeed for your comments. It's helped me get my thoughts in order on the strategy for the various data models (conceptual and ...
Chris Bruce
chris@...
Jan 29, 2003 2:56 pm
1357
Hope someone here can point me in the right direction. I just loaded up Visio 2002 Enterprise Edition specifically because I wanted the latest version of Visio...
Terry, Yes it sill exists, but not where you are looking. It is part of Visio Studio .NET Enterprise Architecture Edition Only. It is under the database...
Just to clarify, VisioModeler and Visio for Enterrpise Architects are two different products. VisioModeler is basically InfoModeler, and is a discontinued ...
Message Hi Terry. Where can we find a summary of what's in Everett? Thanks Larry 650 245 2204 ... From: Terry Halpin To: jcm@yahoogroups.com Sent: 2/10/2003...
From the Visio for Enterprise Architects perspective, Everett is mainly about fixing bugs rather than adding major new functionality. The rest of VS .NET does...
MessageFYI MSFT's grand plan is explained on: http://msdn.microsoft.com/vstudio/productinfo/roadmap.asp One of the more interesting prospects is the proffering...
Bob Rose
brose@...
Feb 11, 2003 2:21 am
1364
When mapping a relational database to Java one needs to use an O/R mapping layer of some type. Most work best, and most consistently, if the underlying...
Randolph S. Kahle
RandyKahle@...
Mar 3, 2003 2:45 pm
1365
We as well often use user-meaningless keys. For example Person (id) is the system "id". Another fact, Person has Employee (number) is another fact which is...
If you use external facts to specify surrogate keys then you can't use the "Add to object type name" naming option that is available for internal reference...
John Miller
jMiller@...
Mar 3, 2003 5:58 pm
1367
Journal of Conceptual Modeling May 2003 Issue: 28 <http://www.inconcept.com/jcm> Editor's Corner by Patrick Hallock What Do You Mean? by Fabian Pascal Most...
Hello, I've been playing with Visio ORM and came across this interesting situation: I have the constraints between department and Employee: [Department] has...
Wolfgang Baeck
wbaeck@...
Jun 11, 2003 7:00 pm
1369
I got the same results - however it all depends on how you define the subtype. If you allowed for default mapping then the manager is part of the Employee...
Pat, Thanks for trying it out. I did exactly what you did before I posted and it doesn't create the three tables. I use Visio EA 10.0.2705 Did you do something...
Wolfgang Baeck
wbaeck@...
Jun 11, 2003 8:10 pm
1371
Sorry - yes I did and an attribute to manager. I tried that first. It did not work because of the option for subtype mapping. So now between the 2 fo use we...
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