[development] Taxonomy: Multiple parents?

[Bill Fitzgerald]

I've often wondered about this as well, and figured I was missing 
something.

But for this use case, two separate vocabularies would capture the same 
data, and it would be easier for the end user to comprehend:

Type of Fish
-shark
-salmon
-eel
-cod
-trout
-carp

Habitat
-ocean
-lakes
-rivers
-marsh
-brackish

I think this is one of those cases where we should ask a librarian -- 
when it comes to explaining uses for taxonomy/categorization, I have 
found that librarians can explain use cases I have never imagined.

Cheers,

Bill

Gerhard Killesreiter wrote:
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> Robert Douglass schrieb:
>   
>> In my opinion, any time multiple parents are used it is a mistake in the
>> data model. For example, if you have regional offices and each office
>> has a sale, customer and advertising contact person, you might be
>> tempted to model the data like this:
>>     
>
> How about:
>
> Fish living in:
>
> - - salt water
> . shark
> . salmon
> . eel
> . cod
>
> - - fresh water
> . trout
> . salmon
> . eel
> . carp
>
> Cheers,
> 	Gerhard
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-- 
Bill Fitzgerald
http://www.funnymonkey.com
Tools for Teachers
503.897.7160