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Variance

4/25/2017

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Variance
  Variance is the difference between what is expected and what is actually happening.  In statistics variance is a measurement of dispersion of data.

Reference:  Apics Dictionary, 2015.


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* What are some examples of variance that you see each day?
Learn more about Six Sigma Statistics Here!
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Current State

4/17/2017

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Current State Value Stream Map
Image Reference: Office Article.
  The current state is the as is, or present circumstances.  When looking at the current state it is very important that the review is done not as it should be happening but as it is happening.  
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Obeya

4/10/2017

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Obeya
Obeya or Oobeya refers to a form of project management and is a component of lean manufacturing.  Even more specifically, the Toyota Production System.  The obeya is a similar concept to a "bridge room" or a "war room."  
  During the product and process development, all individuals involved in managerial planning meet in Obeya to speed communication and decision-making. This is intended to reduce "departmental thinking" and improve other methods of communication which tend to introduce forms of waste into the process. 
  Conceptually akin to traditional “war rooms,” an Obeya will contain: visually engaging charts, graphs, milestones, progress, countermeasures and any other forms of critical information for attendees to make decisions accurately and efficiently.

​Reference:  Wikipedia - Obeya

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Bullwhip effect

4/7/2017

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Bullwhip effect
  The bullwhip effect can be described as an extreme change in the supply chain upstream that is normally triggered by a small change in demand downstream.  This often affects inventory levels which can shift from being on backorder to being in excess of the needed demand.  The general cause of these fluctuations within the supply chain is almost always related to communication.  As communication travels up the supply chain with various forms of waste and delay amounts, times and the accuracy tend to "whip" further from the actual need.  The one sure fire way to eliminate the bullwhip effect is to align supply with demand, including completely transparent communication and synchronization of the supply chain perfectly.  

Reference:  Apics Dictionary 2015 - Bullwhip effect.
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