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Microservices and the inverse conway manoeuvre (Concepts (Capability (The…
Microservices and the inverse conway manoeuvre
References
Microservices and the Inverse Conway Manoeuvre - James Lewis
video
The Principles of Product Development Flow: Second Generation Lean Product Development
:closed_book:
Concepts
Chord diagrams
wikipedia
dependencies between things
organizational structures
Queues between departments
effects/issues
longer cycle times
increases risk
progress
change
overhead
Lower quality
Less motivated people
it components
Two-pizza model
#
Jeff Bezos
amazon
path of the least resistance
Scrummerfall
Scrummerfall: World's Worst Software Development Methodology
"Scrumerfall" - the reality of large organizations trying to go agile from waterfall
Scrumerfall (or: You're Problably Still in Waterfall)
Products Over Projects
Product
Team
Stable
Long-lived
Organized around a capability
Organized around a smaller component of a capability
Own backlog
Project
Team
PMO
Get some requirements from the business
Start a new team
Disolve the team after work is completed
Handle the completed work to the operations team
Short-lived
Distributed Monolith
Microservices Ending up as a Distributed Monolith
Don’t Build a Distributed Monolith
OODA loop
acronym
Observe
Orient
Decide
Act
Military strategy
The fastest OODA loop wins the battle
Capability
The What
NOT the business processes inside the business
Examples
Retailer
Selling stuff
Delivering stuff
Banking
Providing loans to customers
Stable aspect of the business model
NOT the How
Definition
Modeling Business Capabilities by Combining Services with Communication Patterns
A combination of people, processes, and systems that provides value to customers (internal or externals)
James Lewis lecture (14:10)
IT-Business Chasm
How QVC is closing the IT-business chasm
http://www.businessinsider.com/crossing-the-chasm-is-a-major-startup-challenge-2012-12?IR=T
Crossing the Chasm
DevOps
Squads, Chapters, and Guilds
Dunbar's number
Maintaining Relationships: The Fallacy of Dunbar’s Number
Anthropologist Robin Dunbar believes the evolutionary structure of social networks limits us to 150 meaningful relationships at a time — even with the rise of social media
Conway's law
Capabilities
Boundaries
Bandwidth
Teams
#
Company
ThoughtWorks
Martin Fowler
James Lewis