Hi readers! Today we will discuss about 4W1H & 5H1H. These tools are generally used in Six Sigma, TPM SGA, Quality circle etc. We will also be sharing the format for the same.
Let us understand first about the 4W1H.
4W1H | Meaning |
W | WHAT |
W | WHERE |
W | WHEN |
W | WHO |
H | HOW |
How to use?
If we want to describe / analysis a problem, it can be described with the help of 4W1H. In other words, we can say demonstration of physical phenomenon of a problem.
4W1H | Meaning | Statement |
W | WHAT | What is the problem? |
W | WHERE | Where is the problem? |
W | WHEN | When does the problem occur? |
W | WHO | Who noticed the problem? |
H | HOW | How much? |
Example 1 : Suppose ABC is a Coffee Cafe.
Problem Area – Where coffee preparing process is taking place.
4W1H | Meaning | Statement | |
W | WHAT | What is the problem? | Liquid coffee is leaking |
W | WHERE | Where is the problem? | At mixture machine |
W | WHEN | When is the problem occurring? | During the running of machine |
W | WHO | Who noticed the problem? | Coffee operator |
H | HOW | How much? | 2 litres |
- Coffee operator has noticed that 2 litres of liquid coffee was leaking from mixture machine during the making of coffee.
Example 2 : Suppose XYZ a plastic product company. Problem area – Where Plastic moulding process is occurring.
4W1H | Meaning | Statement | Observation |
W | WHAT | What is the problem? | MTBF is low |
W | WHERE | Where is the problem? | Machine Breakdown frequency is high. |
W | WHEN | When is the problem occurring? | During Mould change at machine |
W | WHO | Who noticed the problem? | Machine operator |
H | HOW | How much? | 1.5 Hrs. |
- Machine operator has noticed that MTBF is reduced by 1.5 hours.due to high frequency of machine breakdown during mould change at machine
4W1H FORMAT
WHAT | WHERE | WHEN | WHO | HOW |
5W1H
5W1H is nothing but the action plan. Suppose we are doing the improvement project with the help of TQM tools then in that case 5W1H format is required to explain the action plan of a particular problem.
5W1H | Meaning |
W | WHAT |
W | WHEN |
W | WHERE |
W | WHO |
W | WHY |
H | HOW |
Why to use?
Suppose top management is asking to implement the Total Productive Maintenance (TPM) in the factory and asking to submit the action plan/ necessary activity so that case factory manager should submit the action plan in the form of 5W1H.
5W1H | Meaning | Statement |
W | WHAT | What things need to be done? |
W | WHEN | When will it be done? Start date & End date. |
W | WHERE | Where will it be done? |
W | WHO | Who will do it? |
W | WHY | Why will it be done? |
H | HOW | How will it be done? |
Let us understand it with an example.
If we recall in example 1, problem was leaking of coffee during the mixing process.
5W1H | Meaning | Statement | Action |
W | WHAT | What things need to be done? | Seal needs to be changed |
W | WHEN | When will it be done? Start date & End date. | Say today 3pm |
W | WHERE | Where will it be done? | At Coffee making machine |
W | WHO | Who will do it? | Fitter |
W | WHY | Why will it be done? | No more leakage of coffee, safe workplace |
H | HOW | How will it be done? | Fitter will open the coffee machine and change the damaged seal with a new one. |
Fitter will change the damaged seal of coffee making machine with new seal today from 3 pm to keep workplace safe and no leakage during mixing process.
5W1H FORMAT
WHAT | WHEN | WHERE | WHO | WHY | HOW |
Well the explanation was very good….. Interesting to read it… Thanx
Explained in a very simplified way
4W1H and 5W1H are very methodological concepts to solve problems. This article explains the methodology really well with an interesting example of “Preparation of Coffee”. Very useful for someone who needs to understand this concept well. Well done.
Thanks.
Best and simplest way to understand the technic.