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  • Re: Is it possible to make ORM value types redundant?

    Dear Matt, One other statement, in your last sentence, needs comment. Here is your last sentence again: &quot;Without knowing the data type, you might have a conceptual model that can be interpreted given some external context (meaning the model will have an affinity to the culture it was entered in), but you do not have a model that can be ...
    Posted to ORM Techniques (Forum) by Andy Carver on Sat, Jan 8 2011
  • Re: Is it possible to make ORM value types redundant?

    Dear Matt, Now that I&#39;ve gotten back to an Internet connection that I don&#39;t have to pay for by the minute, and had a chance to read your very worthy replies carefully, I am sorry I missed some of the very worthy comments and points you made. To which I have some degree of basic agreement, but don&#39;t draw (leap to?) the same conclusions ...
    Posted to ORM Techniques (Forum) by Andy Carver on Sat, Jan 8 2011
  • Re: Is it possible to make ORM value types redundant?

    &nbsp;Hi Clifford, &nbsp;Your points are all well taken -- but only if we&#39;re assuming a computer implementation of the model. At the conceptual level, we&#39;re never assuming that. So, if (as I assume) this discussion is about ORM -- which is a CONCEPTUAL modeling language -- then I think my point still stands, notwithstanding that your ...
    Posted to ORM Techniques (Forum) by Andy Carver on Tue, Jan 4 2011
  • Re: Is it possible to make ORM value types redundant?

    Hi Clifford, et al, Please allow me to throw in my two pence /&nbsp;cents. I have always taught my students--and, it clears up&nbsp;ALL these conundrums, to say--that&nbsp;what we mean by &quot;a value&quot; is, &quot;a character sequence&quot;. That&#39;s&nbsp;it, that&#39;s all that&nbsp;distinguishes a &quot;value&quot; from other kinds of ...
    Posted to ORM Techniques (Forum) by Andy Carver on Tue, Jan 4 2011
  • Re: How to Model Categorized Statistics?

    Hi John, Thanks for the data use cases.&nbsp;The most straightforward way to model this would be&nbsp;as a single quaternary fact type, something like: &nbsp; This would map to a single relational table. However, numeric values for different entity-category-quantity combinations would appear on different rows. If you want all the values for a ...
    Posted to Open Discussion & Feature Requests (Forum) by Andy Carver on Thu, Sep 30 2010
  • Re: How to Model Categorized Statistics?

    Hi John, It sounds like you need some ternaries, or a nested m:n fact type relating the MeasuredEntity and Category object types. But from your description, it&#39;s hard to know for sure. Any way you could give us some verbalized fact samples, or at least a data use case (e.g. output report or query result)? That would be the easiest way to ...
    Posted to Open Discussion & Feature Requests (Forum) by Andy Carver on Wed, Sep 29 2010
  • Re: Using data-type for rule modeling

    Hi Ken &nbsp;May I jump in? Since you&#39;re discussing such an important issue, I hope you won&#39;t mind if I critique your latest argument just a little. &nbsp;Pretty much everything you said is true; the problem is that it doesn&#39;t support (logically) the point you&#39;re trying to prove. You make a persuasive case that we need to be ...
    Posted to ORM Techniques (Forum) by Andy Carver on Tue, Mar 31 2009
  • Why should people use / teach ORM (instead)?

    Today in the NORMA forum, Ken Evans responded to Andy Reiser regarding&nbsp;(among other things) a wish which&nbsp;he had&nbsp;expressed, that NORMA would get &quot;picked up by universities&quot;. Ken answered with the below three questions about how we could argue for ORM being taught at universities:&quot;&nbsp;It would help us to help you if ...
    Posted to ORM Techniques (Forum) by Andy Carver on Mon, Feb 16 2009
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