> I too, am not clear about the use case for instance versioning? So if
> "Tom"
> is an instance of the class "Person", what does it mean to have multiple
> versions of Tom? Maybe there are some use cases that make sense in the
> lifesciences context?
> ---Vipul

Have an example for this one: If the instance is of a the class "Tumor" then
on giving treatment it changes in size, shape etc, and might ultimately
disappear. On each visit we are observing a different version of the tumor
instance [in Tom].


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