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BENEFITS OF DOCUMENT
1. Speed up the process of evaluating consistency of the equipment in day to day operations and is calculated using the actual production data for each day.
2. You can easily select period you want to evaluate, thus providing flexibility and enabling decision-making.
3. Avoids complexity in evaluation consistency of production with simplified charts. TRY using if you are in manufacturing and would like to have a quick analysis performed.
DOCUMENT DESCRIPTION
Stability Factor is used to evaluate consistency of the equipment in day to day operations and is calculated using the actual production data for each day. This Stability Factor Analysis template enables users to analyze daily and monthly production by simply entering or copying daily production data. The Charts functionalities are described in details on Overview tab.
The Stability Factor - Analyze Daily and Monthly Production
1. Stability Factor | Production Analysis
About the template
Stability Factor Analysis template enables users to analyze daily and monthly production by simply entering or copying daily
production data. The file allows user to add daily production data for a period of 36 months. The production chart summarized the
data into graphical presentation. These charts automatically adjusts to new input cell, hence enables the user to only focus on
inputing production value data. The Charts functionalities are described in details on Overview tab.
About QMaxima templates
Qmaxima excel templates contain enhanced functional capabilities comparable to software solutions. These Excel templates enable
users to produce complex automated reports with limited user input. These templates require basic user input and include
comprehensive step by step instructions to produce best in class analysis without gaining the advance excel skills.
About QMaxima
QMaxima offers consulting and other specialized services in Business Process Improvement, Lean Six Sigma, Hoshin Kanri, Kaizen
Event Facilitation using simple, yet powerful principles, methodologies and tools to manufacturing, healthcare, software, and IT
industries. For futher enquiry, please visit us on http://www.qmaxima.com/quality-and-bpi-tools.html
2. Production Analysis Template
Overview and instructions
Overview
Stability Factor is used to evaluate consistency of the equipment in day to day operations and is calculated using the
actual production data for each day.
Understanding the Stability Factor
Stability Factor is calculated as ratio of lower 25% quartile production value to (/) upper 25% quartile number.
Q1: Production/day at the Lower 25% line for the month
Q3: Production/day at the Upper 25% line for the month
We have defined the following example to calculate the values of Q1 and Q3
Q1 - Calculated from interpolation of the daily production as follows:
F1 = (n+1)/4 , where n = scheduled number of production days for the month
Q1 = Daily Production ratio between day worse than F1 and day better than F1
E.g. There are 18 scheduled production days, with 4th worst day producing 18,882 lamps and 5th worst day
producing 21,620 lamps.
F1 = (18 + 1)/4 = 4.75, because F1 = 4.75, look and 4th and 5th worst production days.
Q1 = 4th worst day production + (4.75-4)*(5th worst day production - 4th worst day production)
Q1 = 18,882 + .75*(21,620 - 18,882) = 20,936
Q3 - Calculated from interpolation of the daily production as follows:
F3 = 3*(n+1)/4 , where n = scheduled number of production days for the month
Q3 = Daily Production based on ratio between day worse than F3 and day better than F3
E.g. There are 18 scheduled production days, with 14th worst day producing 24,867 lamps and 15th worst day
producing 25,120 lamps.
F3 = 3*(18 + 1)/4 = 14.25, because F3 = 14.25, look and 14th and 15th worst production days.
Q3 = 14th worst day production + (14.25-14)*(15th worst day production - 14th worst day production)
Q1 = 24,867 + .25*(25,120 - 24,867) = 24,930
Stability Factor (SF) - Calculated from the Ratio of Q1/Q3 (lower 4th production and upper 4th production)
SF = Q1/Q3 = (20,936/24,930) = 0.84
Understanding the Template
The following Tabs are included in this template:
Input - Column A defines the days for each month corresponding month in Row 3. The user can select the starting
month by changing value in Cell B2 and can represent each month by its numeric number starting from 1 to 12. The
user can enter the appropriate production data against each cell for its corresponding period.
This document is a partial preview. Full document download can be found on Flevy:
http://flevy.com/browse/document/the-stability-factor-analyze-daily-and-monthly-production-2179
4. This document is a partial preview. Full document download can be found on Flevy:
http://flevy.com/browse/document/the-stability-factor-analyze-daily-and-monthly-production-2179
5. TOP
0.649
0.757 0.765
0.818
0.749
0.792 0.785 0.778
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Jan Feb Mar Apr May Jun Jul Aug
Production(Lamps/Day)
Month
Stability Factor and Q1 & Q3
This document is a partial preview. Full document download can be found on Flevy:
http://flevy.com/browse/document/the-stability-factor-analyze-daily-and-monthly-production-2179
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