In the time before air conditioning, two friends, Jim
and Juanita, are in a library, sitting at the same table.
Jim is hot, so he opens the nearest window, which is on
Juanita’s side of the table. The breeze from the
window scatters Juanita’s papers, so she closes
the window. It seems there is a standoff: Window closed
or window open, what should be done?
In this story, since they are friends, their shared interest
is to continue to be at the same table in the library.
In this case the positions are opposed to one
another. Jim wants the window open and Juanita
wants it closed. As shown in the table below, they have
one shared interest - To remain at the table – and
one differing interest. For Jim, he wants the window open
in order to be cooler. For Juanita, she wants the window
closed so the breeze does not scatter her papers.
Depending on the situation in the library there
are many possible solutions to meet both of their interests. One possibility is a paperweight for Juanita’s papers
to hold them down even if the open window causes a breeze.
Another possibility is for Jim and Juanita to exchange
places at the table. Juanita having more distance from
the window may allow her to work without a paperweight
on her papers.
Another possible interest-based solution is for the two
friends to move to another table, where it may be cooler
due to a fan, or being away from the sun. As shown in
the table below, Jim and Juanita stayed at the same table,
but Jim found a different window could be opened for a
cooling breeze for him, but a breeze calm enough not to
disturb Juanita’s papers.