Team Topologies

https://www.youtube.com/watch?v=haejb5rzKsM

Team size Link to heading

• Limit the size of software services/products by the cognitive load that the team can handle.
• each service must be fully owned by a team with sufficient cognitive capacity to build and operate it
• less than 9 people “there are evolutionary reasons for this”?

Cognitive loads Link to heading

• The total amount of mental effort being used in the working memory

Types Link to heading

• Intrinsic
  • skills
  • “How are classes defined in Java?”
  • becomes natural
• Extraneous
  • mechanism
  • “How do I deploy this app, again?”
  • effective valueless, we don’t want on our teams
• Germane
  • domain focus
  • “How do bank transfers work?”
  • Is part of the problem that we are trying to solve
  • you need this load in your head
  • we want to maximize this