[development] Taxonomy: Multiple parents?

[Gerhard Killesreiter]

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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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