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Subject: Re: Granularity of Aggregates - Normalization

The comment is in regard to the depth of the hierarchy.  So, if I understand
correctly, this is not addressed.

Lisa Shreve wrote:

> Mike,
> > Again in reviewing the example spreadsheet, I am not sure about the
> > rules for when to use create and reference aggregates rather than when
> > to create new basic information entities that are children.  The
> > Methodology for Discovery and Analysis document in section 8.5 seems to
> > deal with this, but not in what seems to me to be a very complete
> > fashion.  "Efficient reuse of basic Core Components" and "maximum reuse
> > and interoperability" are mentioned as goals.   However, there seems to
> > be something missing to me that is somewhat similar to "denormalizing"
> > an RDBMS schema in order to gain efficiency.  For example:  When one
> > simple value is sufficient, is there a way to specify that we shall use
> > a basic information entity in an aggregate rather than being forced to
> > reuse an aggregate information entity that incorporates another
> > aggregate that finally has the basic entity we need?
> >
> > "Maximum reuse" seems to be a dominant principle behind the spread sheet
> > analysis, but is this the only consideration?
> >
> > Question for clarification before comment:  Is this topic addressed in
> > the specifications?  If so, where?
> I'm not certain where this comment is coming from.  If the goal is to use an
> basic which appears in an aggregate, but not the rest of the aggregate, our
> subtractive capability in the context methodology doc explains how to do
> this.  If your comment is over the depth of the hierarchy, yes, there are no
> provisions to do this.
> lms
> >
> > Thanks,
> > --
> > Michael C. Rawlins, Rawlins EC Consulting
> > http://www.metronet.com/~rawlins/
> >
> >
> >
> > ------------------------------------------------------------------
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Michael C. Rawlins, Rawlins EC Consulting

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