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ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
ITFT-Tqm tool kit
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ITFT-Tqm tool kit

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tools of total quality management

tools of total quality management

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  • 1. ITFT College, Chandigarh 1 4/26/2014
  • 2. ITFT College, Chandigarh 2 4/26/2014
  • 3. Tools and techniques (1) Check sheet (2) Pareto chart (3) Flow chart (4) Cause and effect diagram (5) Histogram (6) Scatter diagram (7) Control chart ITFT College, Chandigarh 3 4/26/2014
  • 4. Check sheet A simple means of data collection. Function to present information in an efficient graphical format. Defining characteristic of a check sheet is that data is recorded by making marks(“checks”). Data is read by observing the location and number of marks on the sheet. ITFT College, Chandigarh 4 4/26/2014
  • 5. ITFT College, Chandigarh 5 4/26/2014
  • 6. Example of a Check sheet In a machine shop there is a costly CNC machine which was not giving the desired output. It was decided to visit the shop around 25 times in a week to check the reasons of machine not working. The check sheet was designed for collecting the data as follows. This data can be used further for attacking the important reasons. ITFT College, Chandigarh 6 4/26/2014
  • 7. Reasons for machine not working From Date: 01/12/2008 to 30/01/2009 Reading taken by: ITFT College, Chandigarh 7 S.No Reason Count Total 1 Material not available //// // 7 2 Operator absent / 1 3 Operator away from machine /// 3 4 Machine under repair //// 4 5 Tool under repair //// /// 8 6 Miscellaneous /// 3 Total 26 4/26/2014
  • 8. Pareto chart Used to identify problems which require greater focus. Pareto principle: 80% of problems stem from 20% of the various causes. individual values are represented in descending order by bars, and the cumulative total is represented by the line. 4/26/2014 ITFT College, Chandigarh 8
  • 9. For example, if your business was investigating the delay associated with processing credit card applications, you could group the data into the following categories: 1) No signature 2) Residential address not valid 3) Non-legible handwriting 4) Already a customer 5) Other ITFT College, Chandigarh 9 4/26/2014
  • 10. ITFT College, Chandigarh 10 4/26/2014
  • 11. Flow chart Common type of chart. Defined as a pictorial representation of describing a process used to plan stages of a project. ITFT College, Chandigarh 11 4/26/2014
  • 12. ITFT College, Chandigarh 12 4/26/2014
  • 13. Cause and effect diagram or ishikawa diagram  Diagram showing the cause of a certain event. Used to identify potential factors causing an overall effect. Used to see all possible causes of a result and hopefully find the root of process imperfections. It is known as fishbone diagram because its shape is similar to side view of a fish skeleton. ITFT College, Chandigarh 13 4/26/2014
  • 14. Fishbone diagram ITFT College, Chandigarh 14 4/26/2014
  • 15. HISTOGRAM A Histogram is a graphic summary of variation in a set of data.  It enables us to see patterns that are difficult to see in a simple table of numbers. Can be analyzed to draw conclusions about the data set. A histogram is a graph in which the continuous variable is clustered into categories and the value of each cluster is plotted to give a series of bars. ITFT College, Chandigarh 15 4/26/2014
  • 16. The below example reveals the skewed distribution of a set of product measurements that remain nevertheless within specified limits. Without using some form of graphic this kind of problem can be difficult to analyze, recognize or identify. ITFT College, Chandigarh 16 4/26/2014
  • 17. ITFT College, Chandigarh 17 4/26/2014
  • 18. SCATTER DIAGRAM A scatter plot is effectively a line graph with no line - i.e. the point intersections between the two data sets are plotted but no attempt is made to physically draw a line.  The Y axis is conventionally used for the characteristic whose behaviour we would like to predict. Used, to define the area of relationship between two variables. ITFT College, Chandigarh 18 4/26/2014
  • 19. ITFT College, Chandigarh 19 4/26/2014
  • 20. CONTROL CHART Control charts are a method of Statistical Process Control, SPC. (Control system for production processes).  They enable the control of distribution of variation rather than attempting to control each individual variation. Upper and lower control and tolerance limits are calculated for a process and sampled measures are regularly plotted about a central line between the two sets of limits. ITFT College, Chandigarh 20 4/26/2014
  • 21. The plotted line corresponds to the stability/trend of the process. Action can be taken based on trend rather than on individual variation. This prevents over-correction/compensation for random variation, which would lead to many rejects. ITFT College, Chandigarh 21 4/26/2014
  • 22. ITFT College, Chandigarh 22 4/26/2014

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