I'm playing around with drawing some ORM-like diagrams, using Graphviz: http://www.cfcl.com/rdm/diagrams/SS_x3.png. I'm not sure, however, how I should place...
... I thought that Graphvis was supposed to work that out for you? I recall seeing a little Java applet some years ago that used something like simulated...
I've often thought how nice something like this would be lately too. Often when I enter Object-roles in the fact editor, i am perplexed about how the new...
Thanks for the thoughts, Brian and Clifford! Brian, I've looked into XAML at various points in the past, and it's always been "just not there yet." Maybe it is...
since I don't have a way to attach files or images, i'll try to frame my question as accurately yet succinctly as possible. I have to model an existing...
Joe, ... This Yahoo group has files and photos pages where any member may upload images, etc. Go for it! ... NORMA doesn't yet allow much flexibility in the...
... Likewise. With the right toolkits, AJAX and SVG should be feasible in browsers without plugins. Although I've been disappointed with my explorations of SVG...
Thank you Clifford for your thoughtful and patient response. Yes, it's hard to stay focused on ORM conceptual thought when the immediate goal is to replicate a...
Oops, I see that Yahoo groups broke the links to yahoo photos. Hmpf. Sorry about that. After ruminating on the dilemma of using ORM to model a bad database ...
several times i have run into the terms 'set' and 'bag' used together in the context of constraints on population. In this context,what does 'bag' mean? ...
... In mathematics, a multiset (or bag) is a generalization of a set. A member of a multiset can have more than one membership, while each member of a set has...
Clifford, I read with great interest your work at http://dataconstellation.com/ActiveFacts/examples/ I have two questions about this: at the end, under ...
... Well, that's what I was trying to demonstrate. Any relation (fact type) that has more than one attribute in addition to its primary key is compound, not...
I am more familliar with .NET than the others, but that's not saying much. I'm just an SQL guy and now I'm having to learn a bunch of different technologies at...
Starting from the trivial example in chapter 1 of Information Modeling: Activity is held in Room during HourSlot ... 1 | A | 14 1 | A | 15 2 | B | 14 the IUC...
Joe, I don't think that ORM has a way to specify such constraints on non-overlapping time intervals. The issue is that instead of simple equality/inequality,...
On further reflection, ORM has a way to allow my event_date sorting... as a derived fact type. A fact type can be derived without having to show the derivation...
Thanks Clifford, for your thoughtful reply. I have been able to solve such problems on the SQL side, using check() constraints in the case of comparing start...
Terry sent this from a non-subscribed address, so it bounced, and he asked me to forward it. Unfortunately it contains broken characters presumably from a ...
... It's not clear you could use this to enforce that, for example, a booking for a given room on a given day must have a start time and end time that fall...
Folk, just a quick status update of where I'm at and where I'm going with ActiveFacts. I've been having some success in defining a workable query language -...
Folk, I'm considering taking a slightly different approach to hyphen- binding from that taken by NORMA, and I'd value your opinion. First I'll introduce...
... Thanks Terry, I've done that. ... I guess I should have given more context. I'm trying to produce a grammar that allows creation of all aspects of an ORM2...
Hi Clifford Thanks for posting my reply. I agree with all your goals -- we are planning similar functionality, so I hope we can somehow unify our work or at...
Terry Halpin
terry.halpin@...
Nov 7, 2007 8:21 pm
210
... Certainly - that's what the metamodel forum (RIP) was meant to be about. ... I plan to avoid the need to distinguish them. When a term has been defined in...
Hello, Its been a while since I have posted on this group. Hope everyone is doing well. I have an opportunity to work on a Dot Net project and was wondering...
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