12. All teams will henceforth expose their data
and functionality through service interfaces.
Teams must communicate with each other through these interfaces. There will be no other form of inter-process communication
allowed: no direct linking, no direct reads of another team’s data store, no shared-memory model, no back-doors whatsoever. The
only communication allowed is via service interface calls over the network. It doesn’t matter what technology they use. All service
interfaces, without exception, must be designed from the ground up to be externalizable. That is to say, the team must plan and
design to be able to expose the interface to developers in the outside world. No exceptions.
Anyone who doesn’t do this will be
fired. Thank you; have a nice day!
“
Jeff Bezos
CEO, Amazon
Source: “Steve Yegge’s Rant”
30. “Any organization that
designs a system (defined
broadly) will produce a
design whose structure is a
copy of the organization's
communication structure.
Melvyn Conway, 1967
continuous delivery of business value
31. “When looking to split a large application into parts, often
management focuses on the technology layer, leading to UI
teams, server-side logic teams, and database teams.
When teams are separated along these lines, even simple
changes can lead to a cross-team project taking time and
budgetary approval.
A smart team will optimise around this and plump for the
lesser of two evils - just force the logic into whichever
application they have access to. Logic everywhere in other
words.
This is an example of Conway's Law in action.”
James Lewis and Martin Fowler, “Microservices”
continuous delivery of business value
40. We’re rebalancing the system towards
user-driven roadmaps and control of the
upstream project.
We’re building support for specific industry
clusters in Financial Services, Industrial IoT, and
Telecommunications.
41. We’re focusing on certification to guarantee
portability of apps across clouds.
Make it lasting and durable.
Build the ecosystem of opportunity.
42. GE has taken a leadership role in the ecosystem
with the Industrial IoT SIG, the Industrial Dojo
and the IoT Router.
Influence your future with other industry leaders at
the IoT SIG Kickoff on 11/2
at the Cloud Foundry Summit Berlin.