This reinvention of the soaking bath uses an
overflow channel to recirculate water,
creating a waterfall effect that soothes and
engages the bather.
While the water is recirculated, it is filtered and
heated, so bathwater stays warm and clean;
the recirculation also creates a natural
that is more low‐key than that created by a
Defining Users Needs
"The initial idea of the bath came to us because,
listening to our customers,
we were hearing that people could not get a
bath deep enough to keep them warm and to
give them a really deep soak."
Consumers also wanted a new experience‐ a
bath that would be
visually interesting, quiet, restful, and
聯想到 reminiscent of bathing outside.
"Obviously, they didn't say, I want something
that overflows into a channel and has color
‐ we had to discern that."
The team came up with a number of
concepts for a soaking bath;
the bath that mimicked some of the qualities
of an infinity pool was the one the team
chose to develop. 腦力激盪
After initial brainstorming, 建模
Kohler quickly went into crude modeling of
the bath in cardboard and plywood. “
The rough prototypes were used to get an idea of
what the size and shape of the bath would be,
how many people it would hold comfortably, and
how the depth felt.
The data was adjusted and put into the computer
then, the team built a rough model that would
This model did not yet have pumps or motors;
it was simply used so the team could evaluate the
experience of the bath itself. 評估
In evaluating this experience,
the team had help from Kohler's human
which has access to a database of information
about employees throughout the company.
Employees were called and asked to spend half
a day in the lab evaluating the bath.
The team put their feedback into a third set of
which now had detailing close to what the
team wanted for the final design as well as
From this testing, the team learned that
the speed with which bathers entered the bath
was a big variable 變數
in the proper functioning of the channel
If bathers got in quickly, there was a good
the resulting water displacement wouldn't be
caught by the channel
and instead would end up on the floor.
The overflow channel also affected another of
the team's primary objectives: ior
keeping the bath quiet.
The height the water fell from the interior well
into the overflow channel
turned out to make a big difference in the
noise level of the bath,
so the team had to take that factor into
when refining the overflow channel.
You may find design cases within the above
websites for learning product design processes
used in real situations.