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  • Re: Model optimization

    Hi Dennis You are right in that the same business domain may be expressed by different ORM models. Which member of a set of equivalent models is &quot;best&quot; is partly a subjective issue (depending on the viewpoint of the modeler on what is more &quot;natural&quot;, &quot;simpler&quot; or &quot;clearer&quot;). However for a case like the one ...
    Posted to User experience (Forum) by Terry Halpin on Fri, Apr 16 2010
  • Re: Different roles

    Hi Brian Good to see you active on the forum. I&#39;ve been bogged down with setting and grading final exams, so only just now looked at this thread. You are right in treating role types (e.g. Employee) as different from normal subtypes (which are typically rigid, e.g. Person). I use the term &quot;role subtypes&quot; to talk about them rather ...
    Posted to User experience (Forum) by Terry Halpin on Thu, Mar 18 2010
  • Re: Feature Request: Streamlined Application of UC's to Binary Fact Types

    Another useful shortcut might be to include a simple option to add both a mandatory and uniqueness constraint to the same role, instead of requiring these constraints to be added separately. This is like specifying &quot;exactly one&quot; as short for &quot;some (at least one) and at most one&quot; . Cheers Terry
    Posted to Open Discussion & Feature Requests (Forum) by Terry Halpin on Mon, Feb 22 2010
  • Re: Error reporting when sample population data violates ring constraints

    Thanks for your question about sample data checking in NORMA. Currently the only sample population errors we check are those listed in the Error Filter dialog. To access that dialog, click the ... button at the right of the ErrorDisplay field in the Properties sheet. Unfortunately, these do yet not include any ring constraints. Full support ...
    Posted to Open Discussion & Feature Requests (Forum) by Terry Halpin on Sun, Feb 14 2010
  • Re: Support for Visual Studio 2010

    Sorry for the late response. We have been very busy with adding extra capabilities to NORMA. We plan to add support for VS2010 by the time it is officially released (around March). I&#39;ll leave it to Matt Curland to discuss how much work this involves, as he will be the one doing it. Kind regards Terry
    Posted to Open Discussion & Feature Requests (Forum) by Terry Halpin on Wed, Jan 13 2010
  • Re: SBVR - How are the instances of a concept referred by way of other related things?

    Dear Josue, Thanks for your interest in ORM and how it relates to SBVR. I&#39;m not sure I understand your question, but reference (identification) in ORM is handled basically as follows. Values (lexical objects) are constants that identify themselves, e.g. the country code &#39;AU&#39;. Entities (nonlexical objects) are ...
    Posted to SBVR (Forum) by Terry Halpin on Sat, Jan 9 2010
  • Re: Verbalisations for unary facts (CWA, OWA and OWN)

    Hi Misha Thanks for your quick response. As you indicate, our approach has always been to first declare the fact type, and later add constraints to it. The ability to speak of a fact type independent of its constraints is helpful in many ways. For example, with multi-model applications, the same fact type may appear in different models but with ...
    Posted to ORM Techniques (Forum) by Terry Halpin on Wed, Sep 9 2009
  • Re: Multiple ORM definition file support

    Hi Steve Unfortunately, NORMA does not yet support reuse of externally defined subschemas, but this is one of the features that we do plan to add, along with much better support for relational schemas (e.g. multi-page diagrams, column order control, and incremental change support). Cheers Terry
    Posted to Open Discussion & Feature Requests (Forum) by Terry Halpin on Tue, Sep 8 2009
  • Re: Verbalisations for unary facts (CWA, OWA and OWN)

    Dear Misha Thanks for your query about verbalizing unary facts and unary fact types (e.g. Person smokes). This is the first I&#39;ve heard of any business people misinterpreting NORMA&#39;s unary fact type verbalization as implying the fact type role is mandatory. If they read the fact type that way, then I&#39;m surprised they don&#39;t read ...
    Posted to ORM Techniques (Forum) by Terry Halpin on Mon, Sep 7 2009
  • Re: Column order in DDL output

    &nbsp;I agree that it is highly desirable when viewing relational tables to have them ordered in a way for convenient viewing, e.g. list the most important columns first (e.g. PK columns) and keep related columns grouped together (e.g. parts of an address or name). Unfortunately, NORMA does not let you do this yet (other than your manually ...
    Posted to Open Discussion & Feature Requests (Forum) by Terry Halpin on Thu, Jun 18 2009
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