Articles
Inventory Turns Calculation
10X ROI
A contribution from one of our readers - Troy Bourgeois from Flow Consulting
The 10X ROI (Productivity Improvements in parallel with Sales growth)
Coefficient of Variation
One of the things that I have noticed as I look out at the world is – things change.
The weather changes, the tides change, and customer demand changes.
Of these three, variation in customer demand is perhaps of the most interest to lean practitioners, because, after all, if customer demand were constant, the challenge of designing and managing the value stream would be much simpler.
So accepting that in most cases customer demand does change, a sensible follow up questions are: By how much? And is the demand at least stable?
New Blog Launch – Lean Math!
In the fall of 2009, I launched Gemba TalesTM in anticipation of the Kaizen Event Fieldbook. Truthfully, it was something that I was told authors do - “You need to have a blog to promote your book.”
Well, sort of.
Blogs, in my opinion, should emanate less from a marketing imperative and more from a sense of sharing and community. That’s a whole lot more fulfilling.
Time Units
We've all encountered a "Duh" moment when we're working with time units.
Many time the problem is that we forget that there really aren't 100 seconds in a minute.
That would be the decimal trap.
For example, 4:17 as reflected on a time piece (a.k.a. stopwatch) does not equate to 4.17 minutes. If for some reason, decimals are preferred, like on the “bottom rung” of a value stream map’s lead time ladder, then 4:17 should be reflected as 4.3 minutes. Calculated as follows:
The Cycle Time Family
Cycle time often seems like a pretty simple concept.
Until one tries applying it in the real world.
Over the next few weeks and months, we'll explore, in detail, the math surrounding the various members of the cycle time family. Until then, the figure below may shed some light on the subject!