The seven tools of quality

2017-12-19T22:10:00.001-08:00

The seven tools of quality are as follows :

Cause and effect diagram
check sheet
control chart
histogram
Pareto diagram
scatter diagram
flow chart or run chart

Cause and effect diagram:

It examines why something happened or might happen by organising the potential causes into categories.
The entire diagram ends up like a fish bone with the problem to the right as the head and the catergories to the left as the skelton of the fish so it is also known as fish bone diagram.

Check sheet:
- It is a dociment where the data is collected from its origin point.
- if the data is quantitative the check sheet will be referrred as tally sheet.
- In a defective check sheet two factors will be recorded type of defect and origin of defect.
Control chart:
- The control chart is used to collect the data and analyse the process to be studied.
- It ensures wheather the process is under control.
- The chart has center line which is mid line and there is a upper control limit and lower control limit.
Histogram:
- It is the accurate representation of the data distribution in a process.
- it is represented in the bar charts often.
- On the x axis the range of the values are plotted and in y axis the number of times the data fall in that range is denoted.
  
  Pareto Diagram:
  - Shows in bar chart which problem or area of problem is more significant.
  Scatter diagram:
  - It show the relationship the two variables.
  Flow chart:
  - It represents the entire work flow of the firm or the work flow of the particular workstation.

Basic information about 5S

2017-10-09T23:11:00.001-07:00

5S is a workplace organization method used to arrange the things in a work place for better efficiency in terms of time saving and effectiveness. It was developed first in japan which assisted just in time manufacturing.

5S includes:

Seiri

Seiton

Seiso

Seiketsu

Shitsuke

Seiri:

it means sorting.
it separates the things in the workplace according to its priority.
it also separates the useful and not useful things in the workplace.
it prevents accumulation of of unnecessary items in the workplace.
it eliminates the obstacles while moving in the workplace.
it helps in time saving by eliminating the time meant for searching the things required.

Seiton:

it means set in order.
it orders or arranges the things for easy access.
it arranges the things which are required according to the priority so that the the persons can easily access the things.
makes the workflow smooth.

Seiso:

It means sanitation.
Cleanliness makes the workplace more presentable.
it is also used to avoid accidents caused by wastes by removing the wastes in the workplace.
it helps the workers to be fresh while working.

Seiketsu:

It means standardize.
the sorted things should be standardized for apt arranging.
the things should be placed in the right place.
every things in the workplace should be arranged according to some standard.

Shitsuke:

It means sustain.
the 5s should be implemented without being forced.
it should be self audited.
feedback should be recorded.
always be open to improve the 5s with some valuable suggestions from others.
the 5s practiced should not harm others in any cause.

In recent days one more S is added ie. Safety.

Engineering Basics

The seven tools of quality

Basic information about 5S