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Event Storming for fun and profit Dan North @tastapod

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@tastapod Once upon a time… Dan decided to explain Event Storming

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@tastapod Once upon a time… Dan decided to explain Event Storming Dan

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@tastapod Until finally… the audience could try Event Storming for fun and profit Once upon a time… Dan decided to explain Event Storming Dan

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@tastapod Until finally… the audience could try Event Storming for fun and profit Once upon a time… Dan decided to explain Event Storming Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit Once upon a time… Dan decided to explain Event Storming Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience understood the basic mechanics of Event Storming Once upon a time… Dan decided to explain Event Storming Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invited Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question “They all lived happily ever after” A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question “They all lived happily ever after” “Once upon a time…” A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question Time “They all lived happily ever after” “Once upon a time…” A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod A domain event happened A command or external event affects our world An actor Someone has a puzzle or question Time “They all lived happily ever after” “Once upon a time…” ? A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod More space than you think you need A domain event happened A command or external event affects our world An actor Someone has a puzzle or question Time “They all lived happily ever after” “Once upon a time…” ? A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod More space than you think you need A domain event happened A command or external event affects our world An actor Someone has a puzzle or question Time “They all lived happily ever after” “Once upon a time…” ? A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod More space than you think you need A domain event happened A command or external event affects our world An actor Someone has a puzzle or question Time “They all lived happily ever after” “Once upon a time…” ? An aggregate or subsystem A view or “read model” An app The audience understood the basic mechanics of Event Storming

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience learned about Event Storming a business process

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@tastapod The audience learned about Event Storming a business process Until finally…

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@tastapod The audience learned about Event Storming a business process Once upon a time… Until finally…

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@tastapod The audience learned about Event Storming a business process Once upon a time… Until finally…

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@tastapod The audience learned about Event Storming a business process Once upon a time… Until finally…

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@tastapod The audience learned about Event Storming a business process Once upon a time… Until finally…

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience learned about Event Storming a legacy application

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@tastapod The audience learned about Event Storming a legacy application

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@tastapod The audience learned about Event Storming a legacy application

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@tastapod The audience learned about Event Storming a legacy application

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@tastapod The audience learned about Event Storming a legacy application

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience learned about Event Storming a new application

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@tastapod Until finally… The audience learned about Event Storming a new application

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@tastapod Until finally… Until finally… Until finally… The audience learned about Event Storming a new application

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@tastapod Once upon a time… Until finally… Until finally… Until finally… The audience learned about Event Storming a new application

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@tastapod Once upon a time… Until finally… Until finally… Until finally… The audience learned about Event Storming a new application

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience picked up some useful advice

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@tastapod The audience picked up some useful advice Bring lots of stationery!

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to break up arguments

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to let arguments run! Be prepared to break up arguments

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to let arguments run! Be prepared to break up arguments Be a Time Cop

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to let arguments run! Be prepared to break up arguments Agree explicit ground rules Be a Time Cop

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to let arguments run! Be prepared to break up arguments Agree explicit ground rules It’s like an outboard motor Be a Time Cop

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@tastapod The audience picked up some useful advice Bring lots of stationery! Be prepared to let arguments run! Be prepared to break up arguments Agree explicit ground rules It’s like an outboard motor Be a Time Cop Use a Pomodoro timer

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod The audience understood some of the behaviours they could expect

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@tastapod The audience understood some of the behaviours they could expect The disruptor

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all The wallflower

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all The wallflower The “helper”

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all The wallflower The “helper” The actual helper

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all The wallflower The “helper” The actual helper The last word

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@tastapod The audience understood some of the behaviours they could expect The disruptor The know-all The wallflower The “helper” The actual helper The last word The surprise star

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@tastapod Until finally… the audience could try Event Storming for fun and profit The audience learned about Event Storming a legacy application The audience learned about Event Storming a new application The audience picked up some useful advice The audience understood some of the behaviours they could expect The audience understood the basic mechanics of Event Storming W hat if people have questions? Once upon a time… Dan decided to explain Event Storming The audience learned about Event Storming a business process Alberto invites Dan to speak at DDDx 2016 Alberto Dan The audience W hat am I forgetting?

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@tastapod Until finally… the audience could try Event Storming for fun and profit What if people have questions? What am I forgetting?

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@tastapod Until finally… the audience could try Event Storming for fun and profit What if people have questions? What am I forgetting? Thank you!