Demand is an economic principle that describes a consumer's desire or willingness for a specific good or service. Holding all other factors constant, an increase in the price of a good or service will decrease demand, and vice versa.  Demand can also be defined as a quantity of a commodity or service which is either wanted or needed.

  Efficiency is the ratio of actual work done (Output) compared to a standard (Output expected).

​  See Overprocessing Waste.

  A Kaizen blitz is a rapid improvement event.  It is designed to make a fast improvement or impact to an opportunity or an issue.  A blitz will usually take place over a 1 to 5 day period, but could be as quick as a few seconds.  This gives teams an opportunity to make rapid, quick improvements.  A kaizen blitz may follow the 4 steps outlined in the PDCA cycle:

1. Plan the event.
2. Do the blitz.
3. Check or study the results of the blitz.
4. Act on any adjustments, activities or actions that may have been discovered in checking and studying to fully implement the agreed upon blitz objectives.

  A Gantt Chart is one of the most common tools used in project management.  The Gantt Chart documents a schedule of activities for a team or individual to execute to.  The left side of the chart typically documents the activities while the bars you see in the middle show a start date and the amount of time each activity will take.  Gantt Charts made in Google Sheets are suitable for small to midsize projects, however large scale project plans typically use other forms of software such as Gantter.

  A moving average is a statistical technique that can be used to get a better understanding of the trends within a (X) number of periods or a data set.  It does this by gathering the average of a defined subset within a series of numbers.