DDD & Microservices: At Last, Some Boundaries! • Eric Evans • GOTO 2015

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This presentation was recorded at GOTO Berlin 2015. #gotocon #gotober
gotober.com
Eric Evans - Author of Domain Driven Design
ABSTRACT
Microservices are associated with extreme isolation (e.g. no shared database, autonomous dev-ops teams, etc.) At its best, this creates a practical boundary within which modeling and design have a chance to thrive. In Domain-driven Design (DDD) we call this a "Bounded Context". Bounded contexts take many forms, some [...]
Download slides and read the full abstract here:
gotocon.com/berlin-2015/presen...!
RECOMMENDED BOOKS
Eric Evans • Domain-Driven Design • amzn.to/3tnGhwm
Sam Newman • Monolith to Microservices • amzn.to/2Nml96E
Sam Newman • Building Microservices • amzn.to/3dMPbOs
Ronnie Mitra & Irakli Nadareishvili • Microservices: Up and Running• amzn.to/3c4HmmL Mitra, Nadareishvili, McLarty & Amundsen • Microservice Architecture • amzn.to/3fVNAb0
Chris Richardson • Microservices Patterns • amzn.to/2SOnQ7h
Adam Bellemare • Building Event-Driven Microservices • amzn.to/3yoa7TZ
Dave Farley • Continuous Delivery Pipelines • amzn.to/3hjiE51
/ gotober
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#DDD #Microservices #DomainDrivenDesign
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27 июл 2024

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Комментарии : 41

@diogobr07 2 года назад

25:43 Interchange Context 29:19 Why not logical boundaries? 32:56 Wrap up 36:26 One more time: "Not all of a large system will be well designed" 37:22 Some time for questions

@colinrickels201 2 года назад

I love how eric doesn't have to be this eccentric other worldly person that we can barely make sense of. Hes one of these architects that leaves the jargon behind and speaks to us as normal people. Great speech !

@masoud.alinaghian 10 месяцев назад

yeah I guess "F needs to conform to A" is very human language, lets pretend context map is our everyday language!

@sohamjoshi9527 3 года назад

i have been relistening to this talk year after year and every year i am able to find something very useful applicable to the different things i have done over the years. truly a gem of a talk.

@truekiba 5 лет назад

I highly recommend watching this in 1.5x speed. It sound surprisingly normal and your done quicker.

@AnitShrestha 4 года назад

I just love listening how Eric explains.

@lionofjudah61967 7 лет назад

Brilliant mind comes through shining in this very helpful presentation. Thanks Eric!

@kerimberdimyradov991 8 лет назад

good talk! very usefull. but i recomend to switch the speed of video to 1.5 - Eric is very slow speaker as for me (not native english speaker i mean)

@ornous 8 лет назад

Great talk, indeed! +Ali Horezmi Thanks for the advice. 1.5 felt very natural, indeed!

@andypandy6063 8 лет назад

Irony is so underestimated. :D

@MrAconfee 8 лет назад

I started watching this at 1.5, came back to it a few hours later, forgetting I had sped it up, and it took me about 3 minutes to realize that it was being sped up. haha Thanks for the tip.

@iphadkegmail 7 лет назад

This was actually the perfect speed for me, gave me time to go back in my mind and draw similarities from my experience to what Eric was referring to. That really enhanced the experience. This is more of a philosophical discussion requiring lot of introspection rather than a "how-to".

@lancerkind 7 лет назад

Kerim Berdimyradov How do you adjust speed (iPad)? I just see quality.

@lancerkind 7 лет назад

I like how Eric outlines the problem of multi-team software development in the first 25 minutes. Chances are you've seen this happen but weren't conscious of the patterns.

@gokuljadhav.g8556 4 года назад

Awesome talk. Very helpful !! I like the analogy about Car engine and Very big ACL for engine. Great imagination.

@significantfrank 6 лет назад

Aside from AC which D used to conform A, to accommodate A's change. it could also be a chance to evolve our Domain Model when change comes.

@bhimraogornale6024 5 лет назад

very enlightening

@flashflexpro 6 лет назад

"Sometimes you know that you need a wall ...", that's absolutely right!!!

@diogobr07 2 года назад

1:04 Intro. 1:45 Why do I like Microservices? 7:57 Services and Messages 9:22 Bounded Context 10:36 Context Map Explanation 17:35 Models need to be clear not big 22:44 Not all of a large system will be well designed (Say it three times in the mirror every morning! 😄) 25:43 Interchange Context 29:19 Why not logical boundaries? 32:56 Wrap up 36:26 One more time: "Not all of a large system will be well designed" 37:22 Some time for questions

@javierolazaran7227 4 года назад

Great mind in the body of the actor from Sledge Hammer. Good stuff!

@burhanotour2049 5 лет назад

Speed up the video to 1.25x ! It will be best

@ndenkha 5 лет назад

I always thought of this that a service owns its repository (DB), but what if I have a legacy monolithic system with a big DB, and instead of having one service that does everything why can't we have different micro services that deal with the same DB?

@imaginarynoise3218 5 лет назад

It depends on the database system. Conflicts with the data updating, how it is used, having "multiple sources of truth" determining what is correct data; this can get complicated. It is technically do-able, but it is usually beneficial to wrap the raw data functionality in some logic to control and verify and prevent whatever problems might otherwise crop up.

@georgesmith3022 5 лет назад

Because if you have a single monolithic db performance will suck, bcoz it will be a bottleneck. The bottleneck is usually io operations

@mohamedfouad2304 4 года назад

keep the old system, and keep building new microservices with their own datastores, slowly making the old absolute

@felixdPL 7 лет назад

x1.25 works best ;)

@sascha-oliverprolic923 3 года назад

Lol, I tried and it is true

@paulfrischknecht3999 4 года назад

All of digital electronics has an anti corruption layer at each logic gate, each transistor: they interpret and clean up a noisy continuous signal to a 0 or 1. Cannot interpret data more simply than in two ways.

@smonkey001 7 лет назад

AC = write validations !

@kylemacarthur9863 3 года назад

2x. I was looking for 3x

@MDrivenOfficial 6 лет назад

Hey Evans - what is your reaction to this ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-TX2lF5doZP0.html - if we apply your DDD strategies with model execution will that not be very much faster than what you suggest?