The document discusses the Ishikawa diagram, also known as a fishbone diagram or cause-and-effect diagram. It is a visual tool used to identify potential causes for a particular problem or effect. The document provides an example Ishikawa diagram analyzing the potential causes for an air conditioning unit not working properly in a classroom, grouped into categories of causes such as materials, methods, manpower, and machines. It identifies specific potential issues under each category, like a refrigerant leak, faulty wiring, or power outages.

1. ISHIKAWA DIAGRAM
"Air Conditioning in the
class room not working"

2. WHAT IS IT?
 Causal diagram
 By Kaoru Ishikawa (1968)
 Show the causes of a specific event.
 Also called fishbone diagrams,
herringbone diagrams, cause-and-effect
diagrams, or Fishikawa)

3. USES Of ISHIKAWA
DIAGRAM:
 Product design.
 Quality defect prevention.
 To identify potential factors.
 Various categories of causes to be
explored.
 Encourages creativity.

4. PROBLEMS WITH AC
 Noise from the condenser
 Heated compressor
 Defective heat exchange fan
 Freon Leakage etc.
Causing
an overall
effect

5. Causes
MAN
• Ignorance
• Non clean drainage pipes
• Maintenance
• Non payment of bills

6. Causes
METHODS
 Power cut
 Low voltaged
 Guarantee

7. Causes
MACHINE
 Low refrigant
 Heat exchanger fan
 Frozen inside coil
 Faulty inside wiring

8. Causes
MATERIAL
 Leakage in pipe
 Component
 Freon
 Remote

9. Ishikawa Diagram
Non clean drainage
Remote
Material
Air conditioning
Not working
Methods Man
Power
cut
Machine
Ignorance
Maintenance
pipes
Heat exchanger
fan
Low voltaged
Frozen inside coil
Leakage in pipe
Faulty inside
wiring
Freon
Component
s
Low refrigant
Non payment
Guarantee of bills

10. THANK YOU
- DEEPAK JHA
ARUN THAPA
SANCHITKHANDELWAL