Histogram, pareto chart and cause-efect diagrams.Tool What for Where to use itI have used a Histogram tool to give you a graphical summary of the customer satisfaction data. I hope this will help you to take decisions. Histogram Gives a graphical summary of the customer satisfaction data.It gives a visual impression of the distribution of dataUseful to graph a large number of quantitative data. To summari!e large data setsgraphically". #ompare measurements withspecification$. %or decision making& histogram provides good assistance'. To make more sense out of large data points and to effectively communicate(. )ffective when comparing survey or questionnaire results.*ngr+There are so many problems reported. If I sit and solve all these& it will take lot of time and I will end of loosing my customers.#ons+ Well& of course ,-ou can use pareto analysis or ./0"/ principle chart.Give me some time and I will show you which problems to focus on first.1areto #hart1areto 1rinciple+ ./2 of the problems are caused by "/2 of the factors or causes.3y concentrating on "/2 of the factors& managers can attack ./2 of the problems.Use of ./0"/ rule helps to select the 4vital few5 from 4useful many5 for further action.. The most common use during problem analysis to find those sub0problems which& when addressed& will return the greatest benefits". When selecting problems& causes or solutions to take forward for further action when you want to visibly demonstrate priorities.*ngr+ *y ne6t question is how can we arrest these problems7#ons+ I suggest to have a brainstorming session with the entire team to know the actual causes for the above problems*ngr+ That is a very good idea 8 let me collect information from the team#ause and )ffect 9iagram. *aps out a company5s process : problem to get better understandingof the situations". ;ooks like o statistics involved'. Ishikawa? %ishbone? #ause @ )ffect 9iagram are other names. This diagram is useful to helporgani!e ideas and to identifyrelationships.3y identifying these relationships we dan determine factors that ae the cause of variability in the process". It is a tool that encourages open brainstorming for ideas$. %or better understanding all the causes were categori!ed under ' main categories+ *ethods& *achinery& Men and *aterials.. We converted #ustomer Aatisfaction survey results raw data sheet into meaningful interpretation with the help of HIATBGCD* which portrayed the frequency of customer rating categories". With Histogram chart we could see large number of unhappy customers$. >e6t thing& we got several reasons for customer dissatisfaction from the list'. Bne cannot fi6 all the reasons at one go.It is important to act upon the critical onesto achieve ma6imum results.(. Here& we used the 1DC)TB D>D;-AIA or ./0"/ rule to prioriti!e those issues& which has resulted into dissatisfaction of ./2 of customers. 1areto Dnalysis helps to visually portray problems and causes in order of severity or frequency.E. Dfter identifying to "0$ issues from 1areto& we used #DUA) D>9 )%%)#T F%IAH3B>)G 9IDGCD*for each issue to find out all the possible root causes through 3rainstorming technique.H. Dll the root causes were then segregated into In0control @ But of #ontrol+ High : *edium: ;ow grid called #ontrol:Impact *atri6... ;astly& action items were identified for In0control root causes.