Thursday, March 6, 2008

5 Whys Technique

Problem: Bi-weekly washing of the Lincoln Memoria1 was causing accelerated deterioration of the stone.

1. Why must we wash it so often? This is the only monument that requires such frequent washing.
Answer: Bird dropping must be removed.

2. Why are there so many birds?
Answer: The birds are feeding on. the spiders in the memorial.

3. Why does this monument have so many more spiders?
Answer: The spiders are feeding on the mites in the memorial.

4. Why does this monument have so many more mites?
Answer: The mites are drawn to the lights turned on at night.

5. Why does it have so many mites compared to the other memorials?
Answer: Traditionally the lights at the Lincoln Memorial have been turned on 2 hours before sunset arid off 2 hours after sunrise while the lights at other memorials are turned on. at sunset and off at sunrise.

SOLUTION: Turn the Lincoln Memorial’s lights on at sunset and off at sunrise.


Project/Process Managers must often "peel the onion" back to understand the underlying cause of problems and be willing to ask multiple questions and challenge existing customs and procedures.

1 comment:

Catherine Nakano said...

Hi Stuart,
I'm in your PM Class on Tues. night @ SCE and have some questions re: final exam and case study project.
Final exam: q. 5, total float for act. C I still come up with 7 days, but maybe not calculating the days correctly? Can you confirm that those are the only choices available.
Case study project solutions: Q. 10, WP 2.3 in calculating the EDAC, isn't the AD = 3 wks and NOT 2 wks? Also, Q. 11, the % complete is 38% vs. 40%, unless it's rounded? Thanks for clarifying the answers.
Catherine Nakano, email acct: CatNakano@gmail.com or catherine.nakano@sce.com