I'm a bit torn about which task to tackle next, and would value some opinions. Options are: * Take the reverse-engineered (compound) schema and make it...
Hello folk. I'm not officially "back" from my vacation yet, but I'm back in Sydney (Gosford actually) for the RailsCamp this weekend - after which I'm...
Hi Clifford, Thanks for posting the modeling question - it gets me thinking in ORM. Being able to see the ORM2 diagram is a big help, as it avoids a lot of ...
... this with ... to avoid ... the UofD. There are good reasons to use surrogate IDs and good reasons to use natural IDs. I personally lean towards surrogates...
Hi Scott, All your points are valid, but I think Clifford is looking on this instance as a proof of concept, rather than a practical problem where a working ...
Hi, NORMA team has released another CTP of the ORM2 modeling tool. Visit http://sourceforge.net/projects/orm to download the zip folder. The readme file...
... Hi, The architect for the NORMA tool passed along a number comments on the latest release, and some indications of what to expect in the coming months, in...
... No - both are true. ORM claims to be a conceptual modeling tool, using only the entities identified in natural communication about the domain. In my...
Hi Clifford, Got your land legs back yet? Hope you were able to enjoy the working vacation. In commenting on the limitations you've encountered in the...
I'm not familiar with KL. ORM2 is a graphical update, rather than a semantic update, to ORM, and I'm referring to the semantic content not the appearance (so...
Hi Clifford, My understanding is that KL refers the core theory put forward in T.H.'s doctoral work. In any case, it seems to be the term used by the NORMA...
KL is Knowlege Language. It is the theory that ORM is built on. KL itself is built on FOL. We have tried other approaches to capture the conceptual meaning of ...
Hi Jaron, Yup, I put "Logic" where I should have said "Language." I guess because KL was based on a typed logic. I should have been more careful - on a note ...
Yes, totally agree. I was a bit confused by your statements. Didn't mean to step on anyones toes. As for a name for the textual language...most of us dont have...
Hi, Jaron B. made a comment, in a reply to another thread, about discussions concerning reference mode notations to be used in NORMA. I wanted to ask about...
Ref modes are complicated. We have debated if a mode could have all valueTypes. What is a value type composed of? What is a value type? TH has gone over this...
Hello Jaron, I appreciate the comments on the general nature of the RM discussions at Neumont. I also appreciate that it can be helpful to keep some topics...
Hello Gurus.. Can anyone please provide me details of any institute or individual who is teaching Informatica, Cognos or Business Objects. Thanks in advance. ...
... As I mentioned to Terry, you should look up the open source program "units". It contains a units conversion algorithm and database for almost all units...
I have said too much, because Im not in a position to include others in this discussion. The ORM Foundation will have discussions on these topics. I really...
Hello Clifford, The situation should improve when there is an object model. When that will happen, you may know better than I. The frustration level is tied...
... Ok, fair enough, that's what I thought. I didn't mean to vent my frustration against you personally... you've been helpful! Please also feel free to share...
I just joined the group and have included below a quick response that I sent to Cifford yesterday via e-mail. I am snowed under with work, and currently cannot...
... Yes, which IMO is why the tool should introduce the EntrantID during mapping. That allows the model to be kept fully conceptual, but be implemented...
A future mapping option planned for NORMA will allow you to request a surrogate id when mapping, so you can keep your conceptual reference scheme for...
Hi, A thread in one of the NORMA project forums on SourceForge has touched on some issues about the suitability and proper use of several related terms used in...
... Thanks Mac. Terry himself answered my question with a pointer to section 10.4 of his book, on "context dependent reference". It's a somewhat awkward thing,...
I'd like to get an idea of the distribution of N in N-ary relationships, as expressed in knowledge bases, etc. That is, what percentage of relationships can...
I am taking a crash-course in ORM for a new project and after reading several of Terry Halpin's works (ORM: overview; Business Rules and ORM) I'm a bit...
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