Slides from my talk at Camunda Con Live on 24th of April 2020 about orchestrating and integrating microservices and the connection of choreography, observability and workflow automation
3. Change is the only constant
„ We don‘t know what we will need tomorrow.
But we do know that we will need something.
We have to be able to move quickly!
CIO of an insurance company in 2019
15. And it is even hard to implement
Payment
Seat
ReservationBooking
Ticket
Generation
REST
16. And it is even hard to implement
Payment
Seat
ReservationBooking
Ticket
Generation
REST
17. Workflow automation can help
Payment
Seat
ReservationBooking
Ticket
Generation
REST
Workflow Automation:
Is stateful
Can wait
Can retry
Can escalate
Can compensate
26. Example:
order fulfillment via
dash button
Photo by 0xF2, available under Creative Commons BY-ND 2.0
license. https://www.flickr.com/photos/0xf2/29873149904/
@berndruecker
32. The danger is that it's very easy to
make nicely decoupled systems with
event notification, without realizing
that you're losing sight of that larger-
scale flow, and thus set yourself up for
trouble in future years.
https://martinfowler.com/articles/201701-event-driven.html
@berndruecker
33. The danger is that it's very easy to
make nicely decoupled systems with
event notification, without realizing
that you're losing sight of that larger-
scale flow, and thus set yourself up for
trouble in future years.
https://martinfowler.com/articles/201701-event-driven.html
@berndruecker
34. The danger is that it's very easy to
make nicely decoupled systems with
event notification, without realizing
that you're losing sight of that larger-
scale flow, and thus set yourself up for
trouble in future years.
https://martinfowler.com/articles/201701-event-driven.html
@berndruecker
44. Order
It is not about the protocol!
Checkout
Payment
Inventory
Shipment
Order
placed
Retrieve
payment
It can still be messaging!
@berndruecker
45. Order
It is about where to decide about the coupling!
Checkout
Payment
Inventory
Shipment
Order
placed
Retrieve
payment
Order decides
. to listen to the event
. to issue the command
@berndruecker
48. One of the largest online fashion retailers
in the world (> 14.000 employees) does
every order fulfillment worldwide
with Camunda & Kafka
@berndruecker
54. Summary
• Business agility is essential to survive, this is the case
for microservices
• Collaboration of services is the new challenge
• Balance orchestration and choreography
• From choreography to orchestration can be a journey
• Workflow automation is a essential building block