seven tools of quality for pmp exam

Quality Assurance and Quality Control Tools

Manish Purwar, iZenBridge

Understanding seven basic tools of quality◦ Control Charts◦ Cause and effect diagrams◦ Pareto charts◦ Flowcharts◦ Histograms◦ Run charts◦ Scatter diagrams

Agenda

Understanding of seven basic tools of quality Will help in managing projects better in real life Will help in solving bunch of questions in PMP exam

Expected Benefits From This Session

For Quality Assurance and Quality Control, following are seven basic tools of quality◦ Control Charts◦ Cause and effect diagrams◦ Pareto Charts◦ Flowcharts◦ Histograms◦ Run charts◦ Scatter diagrams

Seven Basic Tools of Quality

Control Charts

It helps in determining if a process is within acceptable limits. It has◦ Specification limits – Customer expectation of performance◦ Upper and lower control limits – acceptable range of

variation◦ Mean – middle of the range of acceptable variation◦ Out of control –

data point outside of upper or lower control limits Non-random data points like rule of seven

Rule of seven – ◦ seven data point on one side of the mean. ◦ Process may be out of control.◦ Situation should be investigated and a cause

found. Assignable Cause/Special Cause Variation

◦ Data point or rule of seven which requires investigation to determine the cause of the variation.

Control Charts

Answer the following based on this diagram,◦ Upper control limit?◦ Lower control limit? ◦ Specification limits? ◦ Is process out of control?

Why?◦ Assignable cause?

Control Charts

Also called Fishbone and Ishikawa diagrams. Used to figure out what caused a defect. It list all the categories of the defects and the

possible causes of the defect. Helps to see all the possible causes in one place.

Cause and effect diagrams

Helps in finding most critical issues.

It plots frequency of issues in descending order

Separates critical few from uncritical.

Based on 80/20 rule

Pareto Charts

Shows flow of processes from beginning to end and how they interrelate.

It help you get a handle on the way you are working by showing you a picture of whole process.

It graphically represent the process to help analyze how problem occur.

Flowcharts

Give clear picture of how data breaks down. It helps you to compare characteristic of data

and make more informed decisions. Also known as vertical bar chart.

Histograms

It shows trends in your project by showing how your data looks line as line chart.

It shows trends in data over time? Project progress going up or down over time?

Run Charts

It shows relationship between two different data types.

Scatter diagram might be used to see if two different data types are related.

Scatter diagrams

Recap : Identify the tool?

Recap : Identify the tool?

Recap : Identify the tool?

Recap : Identify the tool?

Recap : Identify the tool?

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Presentation by – Manish Purwar

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