On 2/13/16 7:36 AM, john lunzer wrote:
Don, thanks for taking the abstraction back a step further.
Having thought about it again there is another fundamental element to
the data structure. Links, which describe who is interacting with who,
or in the node sense since the relationships can only go down, a one
directional edge (in graph theory terminology). In that case a
"thread" would be a collection of edges which share common nodes,
directly or indirectly. My understanding is that nodes themselves
wouldn't necessarily need attributes at all, though it might make
sense for them to! If a view is simply a tree visualization of a
thread then it would be enough for the edges to have the attributes.
It might be useful to think of "intrinsic" vs. "extrinsic" attributes.
An attribute that is intrinsic to an item (e.g., a person's birthdate)
might be best represented directly as an attribute of the person (unless
a date is treated as an item in its own right).
Don
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