Can You Spot Improvement Opportunities Just by Looking?
I recently posted a briefing, "You
Can Observe a Lot Just by Watching", asserting that you could just
look around your company (or a supplier's or customer's company) and observe
signs of operational excellence (or lack thereof).
This can be taken one more level -- into some simple analytical tools that
will put you on the trail of other operational issues.
Bob Gariepy, a GE-trained guy who taught me a lot about manufacturing, used to
get a floor plan of the factory, then trace and scale the physical routing of
all the parts that went into a finished product from origin to completion. And
then Bob set about reducing the distance traveled by a part.
Bob showed me examples of parts that traveled over a mile by the time they got
to the finished goods shelf.
By definition, a lot of travel distance is a lot of wait time. And a good
opportunity for things to get lost, misdirected or damaged. And a lot of extra
labor, moving things great distances through the factory. Not to mention the
equipment required to handle all that.
So, Bob taught me that physical distance traveled by a product in
manufacturing actually has an inverse correlation to efficiency, quality and
productivity. What we did about that was quite remarkable. In several cases,
we changed the floor layout to manufacturing cells, where every step in the
assembly process was within eyesight. That resulted in work-in-process of
maybe 6 or 8 units, max. And it meant that if one unit failed final inspection
we could stop right then and figure out the problem, before we made 100 or
1,000 defective units.
A couple of these cells were designed for "make-to-order", where the
manufacturing lot size was one (1). Generally the same type of item, but
perhaps in different sizes, capacities or configurations. That meant we could
charge a "rush order" fee when a customer needed something tomorrow,
and pocket the entire margin -- all we had to do to put out a rush order was
put it into the front of the day's production schedule. No muss, no fuss. But
more margin.
Something else we learned was to compress manufacturing processes into the
least possible floor space (This also reduces distance traveled). You need
aisles wide enough for safety and maintenance access. Beyond that, wider
aisles tend to attract WIP -- wire baskets, pallets and other places
non-productive assets can sit. You're far better off with a large, unused open
space than spreading out the equipment to cover the floor. Same idea applies
to office layouts -- compress the furniture into the least possible area, and
leave the rest wide open. You won't have people complaining later when you
need to space for expansion.
I later observed a company where the normal product flow crisscrossed the
floor (actually, 2 buildings) at least 4 times before it went out the door.
The equipment was scattered throughout a building that was 50% bigger than it
needed to be. They're now in bankruptcy. Wasn't hard to predict.
There are lots of places outside a factory where Bob's idea applies. White
collar workflow, for example. Do things have to physically move long distances
between people, or perhaps buildings or cities? What would you have to do to
relocate some of that activity to be in closer proximity? Or perhaps put
systems in place where a physical document didn't have to move at all -- maybe
an online solution.
Give this a try -- observe the way things move through your own production or
administrative process -- distance traveled, times touched, etc. Just watching
will work.