Lean 5S: Now Is the Perfect Time to Clean Up!

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Many of us have a lot more time on our hands these days.  And a lot less money.  This is true for businesses as well as individuals.  But it doesn’t mean that we can’t make improvements.  In fact, this is the perfect time to do some of those things we just never had time for in the past.  Whether it’s organizing your work station, archiving your computer files*, or cleaning up your inventory storage, you can accomplish a great deal by employing a very simple Lean tool, the 5S.    

These five simple steps (as you might have guessed, they all start with the letter “s”), will not only get you organized, but they’ll keep you that way.    They must be done in this order:   

  1. Sort: Separate the stuff you use from the stuff that just sits there. You have to decide how often you use something and if that qualifies it to stay at your work station (or whatever space you’re organizing).
  2. Set in Order: A place for everything and everything in its place.
  3. Shine (some call it Sweep): Clean it up
  4. Standardize: Train everyone in how/why we’re doing this
  5. Sustain: Make it easy to keep it this way. Label bins and boxes and drawers. Make sure there’s room (in the Set in Order step). Draw outlines (such as tool boards) so we all know where it goes.

For a real-life example (photos and narration) click here…    

The trouble that most of us get into is that we do the first three steps.  Every once in a while we enjoy a burst of ambition which we apply vigorously to cleaning up a space.  But within a very short while, it looks like this again:   

The owner of this desk does not use 5S!

The owner of this desk does not use 5S!

 

That’s because we failed to follow through…essentially wasting all the effort of cleaning and straightening in steps 1-3.  It takes discipline, but it’s a habit worth getting into. To learn more about Lean principles and tools, enroll yourself in the Lean 101 course at BeeLearn.com.  It’s free; all you have to do is create an online account.    

*Note:  The 5S works for electronic messes as well.  How much time do you spend looking for a file and how many versions of the same file do you have stored in various places?  Mmmm…

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Data Might Be Everywhere, But It’s Not Always Continuous

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One of my pet peeves (I have many!) is when I hear a sports announcer speak of the “amount of runs” that have been scored in this game.  “Less commercials” used in a television network ad makes me want to scream.  What they should have said was “number of runs” and “fewer commercials” since runs scored and television commercials are measured in whole numbers only.  There’s no such thing as half of one…     

As much as this annoys me, it is just bad grammar.  The user’s point is still communicated to me.  However, when it comes to plotting and analyzing data, knowing the difference between “whole number only” and “infinitely divisible” measurements is critical. Critical!  Choosing a tool to analyze and/or graphically represent data depends upon what type of data it is.  The wrong tool can yield wrong conclusions.    

This post will not go into which type of data is better or why; we’ll save that for next time.  For now, let’s define the two types of data that matter when using most statistical analysis and graphical tools: Discrete and Continuous.    

Discrete Measurements

 Discrete Data     

No, not discrete as in “can keep a secret”.  In this case, discrete refers to all measurements that don’t make sense in smaller portions.  You can’t divide the measurement in half - or by any amount - and have something that means anything in the physical world.  

Some examples:    

  • Runs in a baseball game 
  • Points in any sporting event
  • Automobiles built, sold, registered, on the road…
  • Students taking a Moodle course
  • Seats on a train
  • Bottles of wine, if you are measuring the containers, not the liquid inside
  • Number of times you’ve started the engine on your car
  • Words in your latest book
  • Typographical errors in your latest book 

Of course, you can have an average of 3.1 points in a game, which makes sense if you know how to use and interpret averages.  We’ll get into that soon, in a discussion of the Central Limit Theorem.  For now, let’s stick to the actual measurements, not their averages.    

If you have five bottles of wine, using proper grammar, you would refer to the number of bottles. The number of bottles is a discrete measurement.  Inside those bottles (assuming you didn’t drink it yet) would be an amount of wine.  The volume of liquid is a continuous measurement.    

Continuous Measurements

 Continuous Data    

This type of data is measured in a way that is infinitely divisible.  Whether you want to or not, you can measure the amount of wine in units as small as a centiliter, a micro liter… or even smaller still.    

There are some categories of data measurements that are always continuous, regardless of what units we typically use:   

  • Distance
  • Volume
  • Area
  • Time
  • Weight
  • Money (wealth, not currency, which is discrete) 

This is where math and grammar diverge.  Even though it would be proper grammar to say “the number of pounds”, any measurement of weight, regardless of the units, would be continuous data.  Examples of continuous data, no matter how you say it in English:    

  • Liters of wine, number of liters, volume of wine, amount of wine
  • Kegs of beer, bottles of beer, glasses of beer…IF you are measuring the amount of beer (not the containers)
  • Miles (or kilometers) to Grandmother’s house
  • Age of your car (or anything), in years, months, days, millennia…
  • Ink (or paper) used in the production of your latest book 

Understanding the difference between discrete and continuous (sometimes called variables) data is foundational to using tools to compile, analyze, and graphically display data.  When you’re stuck in commuter traffic or alone with your thoughts, quiz yourself on the difference until it becomes second-nature!    

If you want to hone your grammatical skills, this is a great site: Grammar Girl.    

For more on this topic, consider taking the Data 101 course at BeeLearn.com.

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