Event storming recipes
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17-Oct-2014 -
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Transcript of Event storming recipes
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EventStorming recipes @ziobrando
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What’s Eventstorming
Let me show you…
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#CDays14 – Milano 25, 26 e 27 Febbraio 2014
Video!
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What’s Eventstorming
All the key stakeholders in the same room
with an unlimited modelling space
using stickies as Domain Events
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But basically…
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it’s a party
Let me show you…
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who should we call?
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you missed the party
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but also…
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You’re invited to the next
one
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hack the place
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no sitting
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Ubiquitous body
language
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Domain Events
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along a timeline
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Let the magic happen!
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no UML No BPMN
NO …
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Model affinity
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Domain events are just a sweet spot
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next steps
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incomplete is a legitimate
state
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When should we stop?
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The real constraint…
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Make the party memorable
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What are we seeing
exactly?
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system view
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Different people make a
different party
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in small companies…
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Code coverage?
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http://www.businessweek.com/articles/2013-04-18/faq-reinhart-rogoff-and-the-excel-error-that-changed-history
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look for things that matter
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who’s with me?
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gotta do something!
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are you ready for it?
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What about remote
eventstorming?
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What about remote
toga party?
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Ok, seriously
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Wrapping up
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but…
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leave it around, for a
while…
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chaotic eats sequential for
breakfast
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Creative collaboration
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meaningful conversation with domain experts?
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© Alberto Brandolini 2009
experts help us to understand
and we help them
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choose your role
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Find an observation point
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Model storming?
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sorry about that
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© Alberto Brandolini 2013
Event Storming
expected outcome steered towards a canonical
model partially defined steps
model affinity given problem type
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© Alberto Brandolini 2013
Model storming
unpredictable outcome no canonical model
notation incremented iteratively
!
no predefined problem type
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Don’t postpone people
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questions?
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Tkanks! @ziobrando
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References
EventStormers community on Google+ https://plus.google.com/u/0/communities/
113258571348605620818 !
Introducing Event Storming: http://ziobrando.blogspot.com/2013/11/introducing-
event-storming.html