Typed/annotated version (with what I remember from discussion, and apologies for my handwriting!):
(From discussion at QCon London 2015, Wednesday 4th March, 2:30PM time slot)
The problem:
Avoiding dependency hell
When you have numerous services continuously deployed, a change of behaviour in one system can cause a problem to occur in another system.
How to manage these changes across system boundaries?
(“Version hell” is a reference to http://en.wikipedia.org/wiki/Dependency_hell)
Some approaches suggested:
We also talked about:
Whiteboard pic. attached:

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