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Chris Travers
What What Database Professionals, Devops and
Others Can Learn from Flight Safety
About Me
I have around twenty four years of experience with PostgreSQL and databases in many
roles – developer, database hacker, dba, and more. I love PostgreSQL’s versatility.
I have also been around IT operations most of this whole time. I have worked as a
sysadmin, devops engineer, and platform engineer.
About This Talk
▶ Industry problems
▶ Areas we can improve
Introduction
Valorizing Fatigue
Fatigue vs Drunkenness
Which is worse? Getting up after 4 hours of sleep? Or having 4 drinks?
A brief history of Human Factors in Aviation
▶ Human error vs Pilot Error
▶ Individual responsibility vs collective responsibility
▶ The Tenerife Disaster and the Dutch Report
▶ David Beaty’s Contributions
Devops/SRE, Automation and Human Error
Automation Paradox
▶ Automation isn’t always the answer!
▶ Automation can make human error more likely
▶ Expectation Bias is a real problem
▶ Some examples.....
Good automation
▶ Deliberate decision points built in
▶ Built around the human
▶ Careful attention to feedback
▶ Easily integrated into a checklist
Why we make mistakes
▶ Built-in biases (confirmation, continuation, etc)
▶ Reversion to prior behavior under stress
▶ Fatigue
▶ Missed details due to overload
How to debug the human
▶ Need a good taxonomy of error types
▶ Need a good understanding of cognitive biases
▶ Social factors (coming up!)
▶ Contextualize the person
Social factors
▶ Conformity and groupthink
▶ Power distance and responsibility
▶ Work relationship
The ideal role of human operators
▶ Decision-makers
▶ Good situation awareness
▶ To do this we need to be capable and well rested!
Recommendations
▶ Bring in aviation trainers for crew resource management with experience training
other industries
▶ Build our own inhouse programs to support this going forward
▶ Need the organizational commitment to make it better
Roadmap for Implementation
1. Get organizational commitment
2. Bring in trainers and train both operators and management
3. Develop a core team of people to give recurring trainings and trainings to new
hires.
4. Include human error findings in post mortem reports wherever appropriate
Conclusions
▶ We treat human error the way airlines treated pilot error in the 1950s.
▶ Our industry has a lot to learn
▶ Great improvements in reliability, performance, and even efficiency are possible
Thanks to
▶ Adjust GmbH for where I got this experience
▶ Delivery Hero, for helping me solidify some of my thinking on this topic
▶ Vettabase for inviting me to give this talk here
Questions
Questions?

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Why_Database_Teams_Need_Human_Factors_Training (7).pdf

  • 1. Chris Travers What What Database Professionals, Devops and Others Can Learn from Flight Safety
  • 2. About Me I have around twenty four years of experience with PostgreSQL and databases in many roles – developer, database hacker, dba, and more. I love PostgreSQL’s versatility. I have also been around IT operations most of this whole time. I have worked as a sysadmin, devops engineer, and platform engineer.
  • 3. About This Talk ▶ Industry problems ▶ Areas we can improve
  • 5. Fatigue vs Drunkenness Which is worse? Getting up after 4 hours of sleep? Or having 4 drinks?
  • 6. A brief history of Human Factors in Aviation ▶ Human error vs Pilot Error ▶ Individual responsibility vs collective responsibility ▶ The Tenerife Disaster and the Dutch Report ▶ David Beaty’s Contributions
  • 8. Automation Paradox ▶ Automation isn’t always the answer! ▶ Automation can make human error more likely ▶ Expectation Bias is a real problem ▶ Some examples.....
  • 9. Good automation ▶ Deliberate decision points built in ▶ Built around the human ▶ Careful attention to feedback ▶ Easily integrated into a checklist
  • 10. Why we make mistakes ▶ Built-in biases (confirmation, continuation, etc) ▶ Reversion to prior behavior under stress ▶ Fatigue ▶ Missed details due to overload
  • 11. How to debug the human ▶ Need a good taxonomy of error types ▶ Need a good understanding of cognitive biases ▶ Social factors (coming up!) ▶ Contextualize the person
  • 12. Social factors ▶ Conformity and groupthink ▶ Power distance and responsibility ▶ Work relationship
  • 13. The ideal role of human operators ▶ Decision-makers ▶ Good situation awareness ▶ To do this we need to be capable and well rested!
  • 14. Recommendations ▶ Bring in aviation trainers for crew resource management with experience training other industries ▶ Build our own inhouse programs to support this going forward ▶ Need the organizational commitment to make it better
  • 15. Roadmap for Implementation 1. Get organizational commitment 2. Bring in trainers and train both operators and management 3. Develop a core team of people to give recurring trainings and trainings to new hires. 4. Include human error findings in post mortem reports wherever appropriate
  • 16. Conclusions ▶ We treat human error the way airlines treated pilot error in the 1950s. ▶ Our industry has a lot to learn ▶ Great improvements in reliability, performance, and even efficiency are possible
  • 17. Thanks to ▶ Adjust GmbH for where I got this experience ▶ Delivery Hero, for helping me solidify some of my thinking on this topic ▶ Vettabase for inviting me to give this talk here