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RE: Schema fragments for everyday stuff


gjxdm jobs

From: Chiusano Joseph [mailto:chiusano_joseph@b...]

"Bullard, Claude L (Len)" wrote:
> 
> The Justice XML schemas and data dictionary will
> have these in some fashion.  How much actual use
> they are getting is questionable, but just as they
> did with CALS and 28001, Federal grant money is
> being attached to them for public safety systems.
> 
> See www.it.ojp.gov

>The following URL provides information on "Organizations Utilizing the
>Global Justice XML Data Dictionary (GJXDD)":

>http://www.it.ojp.gov/topic.jsp?topic_id=107

Thanks!  People should be well-informed.

>The first "official" release of GJXDD (it's also referred to as GJXDM,
>"M" for "Model") was a few weeks ago:

>http://xml.coverpages.org/ni2004-01-22-a.html

But is already referenced in an RFP sitting on my desk 
as we speak and it is older than a few weeks.  The antecedents 
have been around for three years at least.  I've counted 
about four RFPs in the last eight months the reference 
these.  Of these, only one had them as firm requirements 
and that one, some suspect, is written like that to 
prove no vendors have it and therefore it is a good 
idea to let the local IT shop do the work thus guarding 
the jobs in cash-strapped economies.

>> Where the 80/20 point here is questionable.  These
>> are designed for databases that have a high degree
>> of associativity among the elements.  

>Not sure what you mean - could you please explain this?

I mean 80/20 is relative to the application.  It's a no 
brainer to extract elements for some application as long 
as the scope of that is understood.  It will be quite 
another to critique the source without understanding 
what it is designed for.  IOW, one needs to understand 
the data pipes of public safety.  These aren't one 
dimensional.  One should read a lot of RFPs, know 
what the agency scales are (eg, San Francisco is 
not Pomona), know how diverse these are from agency 
to state and from state to federal, know that these 
same data elements don't really work globally, and 
so on.  Otherwise, it's a good model.

To understand
>> these, one has to understand the master index types
>> and how NIBRS is fed from local to Federal agencies.
>> One must also understand the differences among
>> operational and organizational statistics.

>Also not sure what you mean here.

This gets into a lot of detail.   First, understand 
UCR/NIBRS.  Then understand these are not univerally 
applied and are always locally customized.  The high 
costs are in the customizations and these are actually 
necessary.  So the Justice XML models end up being bid 
as up/down translation targets and if the system is 
wall-to-wall instead of best-of-breed, will slow the 
system down and make it more expensive.  Best-of-breed 
will reduce the system's functionality so best-of-breed 
ends up being 75% of the possible functionality.

Scale always means, pick a dimension.  No free lunch.

len

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