Help!!!! My users have requested a database design that I don't know the best way to handle. Basically what we have is for each table a valid begin and end...
candace_mccabe@...
Mar 18, 2001 5:04 am
639
Candace, First, the 3rd normal form request. Third normal form has a defined set of rules. It either is, or is not in 3rd normal form. If you obey these rules...
Patrick Hallock
path@...
Mar 18, 2001 10:00 pm
640
Ontologies (a representation of the structure of reality), resulting from Ontology (the study of reality) are a current focus of considerable academic and...
mark.j.allred@...
Mar 28, 2001 12:45 am
641
Hi Mark You raise some good questions. Professor Robert Meersman at the Free University of Brussels (the site of the original Control Data Lab where the first...
Terry Halpin
TerryHa@...
Mar 28, 2001 1:14 am
642
When I first learned of ORM several years ago, I was struck by its structural resemblance to Conceptual Graphs (see http://www.bestweb.net/~sowa/cg/), which ...
Johnston, Mark
mark.johnston@...
Mar 28, 2001 2:29 pm
643
Mark, Thank you for your insights. Your comments have enlarged my thinking into new avenues. I'll admit, immediately, only a passing familiarity with...
mark.j.allred@...
Mar 28, 2001 8:58 pm
644
Mark and others, The issue between the conceptual model and down stream models has been a hot issue for some time. I would agree that keeping the conceptual...
Patrick Hallock
path@...
Mar 29, 2001 2:01 am
645
Dear all, I'm a newcomer here, so please excuse me if I don't grasp the assumed context of this forum. But I think "Topic Maps" may be related to the...
Svante Kleist
svante+jcm@...
Mar 29, 2001 2:26 pm
646
They are certainly related. Ontological analyses basically provide classification rules for objects in the real world. (e.g., Mammals breathe air, Fish don't...
Lance Delano
lanced@...
Mar 30, 2001 1:11 am
647
Pat, Thanks for joining the discussion. I think that your remarks are right on target! ... mapping ... of a ... model ... options for ... logical ... hints, I ...
mark.j.allred@...
Mar 30, 2001 8:19 pm
648
Svante, Thanks for bringing this to our attention. I enjoyed my exploration of Topic Maps yesterday, and I, too, agree that they are very much on topic. I...
mark.j.allred@...
Mar 30, 2001 8:19 pm
649
Dr. Terry Halpin is Awarded Nobel Prize in Data Modeling! It is with great pleasure that we announce that the recipient of the 2001 Nobel Prize in data...
Scot A. Becker
scotb@...
Apr 1, 2001 5:12 am
650
Hi to you all. Once again, I find it necessary to reiterate - it is imperative that we separate the semantics of an ORM or Ontological model from its...
geverest@...
Apr 1, 2001 1:47 pm
651
All, Thinking along Gordon's ideas: I like to think of ORM as a specifcation. A specification that is very complete and precise. In that, we can choose to view...
Patrick Hallock
path@...
Apr 1, 2001 6:15 pm
652
Can you say that again, but without using a presentation (or syntax)? ... From: geverest@... [SMTP:geverest@...] Sent: Sunday, April 01, 2001...
Kelly VanDusen
logic@...
Apr 2, 2001 6:14 pm
653
... that we ... presentation ... George, Your response seems quite passionate, and we seem to be in violent agreement. I understand you to agree that ORM is...
mark.j.allred@...
Apr 2, 2001 6:14 pm
654
Hello, due to distance, it seems me to be out of seminars. What are other way of formation? Web sites, texts? Alain....
Alain.Fernandez
alain.fernandez@...
Apr 2, 2001 8:13 pm
655
RE: [JCM] Re: ORM as an ontology languageHi Alain, Check out "Information Modeling and Relational Databases: From Conceptual Analysis to Logical Design" by...
Scot A. Becker
scotb@...
Apr 2, 2001 8:18 pm
656
Dear JCM Subscribers: We'd like to offer the following correction/retraction: "We regret to inform you that we were in error with regards to our April 1st,...
Scot A. Becker
scotb@...
Apr 2, 2001 9:38 pm
657
I think the crew at InConcept deserve a Nobel prize for Humor! Can't wait for next year's announcement. Terry ... From: Scot A. Becker...
Terry Halpin
TerryHa@...
Apr 3, 2001 12:25 am
658
In building a Dictionary from ORM: build starts, warnings appear without errors, and mapping starts. Then, "Build canceled by user" appears and the process...
mark.j.allred@...
Apr 4, 2001 12:26 am
659
In my experience this is an indication of unrecoverable corruption of the IMD. If you have an older version of the IMD you may be able to restore it and...
John Miller
jMiller@...
Apr 4, 2001 1:31 pm
660
Yes, several of my students have encountered this problem with the 25 Mb download of VM. In all cases, as best we have been able to determine, the problem...
geverest@...
Apr 4, 2001 1:31 pm
661
What version of Infomodeler/Visiomodeler are you using? I used to see the "build cancelled by user" problem quite a bit in older versions, but haven't run...
Bill MacLean
bmaclean@...
Apr 4, 2001 6:32 pm
662
I'd like to propose a change to ORM metamodel as posted on JCM website <<VisioModeler conceptual (ORM) model.url>> The changes are to eliminate the Object...
John Miller
jMiller@...
Apr 5, 2001 2:23 am
663
In the ORM Meta-model there is a distinction between a predicate and a relationship. Relationships have arity, predicates have predicate text. In the tools...
John Miller
jMiller@...
Apr 5, 2001 5:50 pm
664
Hi John W.r.t. the metamodel I originally drafted, we need to retain ObjectType as a supertype of EntityType and ValueType. Also the unary predicate "is...
Terry Halpin
TerryHa@...
Apr 5, 2001 9:19 pm
665
I missed the "EntityType nests Relationship" fact, however why is it "Entity Type" and not "Nested Entity Type"? Doesn't the current model allow an "Unnested...
John Miller
jMiller@...
Apr 5, 2001 11:37 pm
666
Hi John You make two points, one about nesting and one about independence. Let's consider these in turn. The nests relationship is used to define...
Terry Halpin
TerryHa@...
Apr 6, 2001 12:41 am
667
Hi, Is there anyone on this list who is in the UK? I'm trying to find some other local users of ORM / Infomodeler. thanks Giles Collingwood...
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