16. To lower the cost-of-change curve, we must lower the transaction costs associated with adding features
17. Make it cheaper to Change code Check in code Understand the code Communicate with your teammates Push code to production
18. If we can make changes cheaply enough . . . . . . the cost savings from quicker feedback and increased learning outweighthe costs of overhead and rework.
19. 120 96 72 48 24 0 BONUS What’s theaverage typing speed of the programmers on your team?
Notes de l'éditeur
Speed up feedback loops, know whether you’re building the right thing, whether it’s going to make you money, know if you understood the requirements, be more responsive to your customers, change direction quickly
What if you could engineering things in such a way so that you could produce a constant stream of new features at a steady rate, regardless of the age and/or size of the system?
OBJECTIVES Understand how various agile engineering practices help to flatten the cost of change curve See why lowering transaction costs is a key theme of agile engineering practices Be exposed to some ways to evaluate the maturity of their own agile engineering effortsHave ideas about how to improve their implementation of agile engineering practices
This exposes the limit of how quickly you can work within your team context.
Collective code ownershipSimple designGroup designTransparency in version controlReduce the WTH’s per minute in a code reviewPAIRING
You need a shared contextBuild trust through interactionIf you aren’t working regularly side-by-side with your teammates, the team knowledge and cohesion is going to fracture
