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Vaughn Vernon @vaughnvernon.bsky.social · 17h

Being LLMs that run on GPUs that can't perform associative math, there's no reason to expect a given prediction. We want consistency, but the LLM platforms are inconsistency machines by design.

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Vaughn Vernon @vaughnvernon.bsky.social · 17h

Unfortunately, many still make a snap judgment based on the words Monoliths and Microservices. 4/4

Vaughn Vernon @vaughnvernon.bsky.social · 17h

We were hoping that leading with both of these words would frame the more important point of using DDD strategic design and enabling architecture decisions to reveal themselves as purpose is understood by stepwise refinement. 3/4

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Vaughn Vernon @vaughnvernon.bsky.social · 17h

We provide a slew of reasoned principles and guidance on making sound architectural decisions while focusing on the actual two most important words in the main title and subtitle: "Strategic ... Innovation." 2/4

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Vaughn Vernon @vaughnvernon.bsky.social · 17h

Our book "Strategic Monoliths and Microservices" doesn't categorically (as an absolute) recommend modular monoliths. The key is in the subtitle: "Driving Innovation Using Purposeful Architecture." 1/4

Book: Strategic Monoliths and Microservices—Driving Innovation Using Purposeful Architecture #DDD #DDDesign #domaindrivendesign #eventdrivenarchitecture

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Vaughn Vernon @vaughnvernon.bsky.social · 18h

OH: YAGNI is contextual.

Everything is contextual. One of the very worst software issues globally is people not understanding that.

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Vaughn Vernon @vaughnvernon.bsky.social · 18h

Is that "appy yak" which is sort of like "happy yak (shaving)" only different?

Hans L’Hoest @hanlho.com · 2d

Instead adopt APYIAC : avoid painting yourself in a corner. That’s what I used to throw in the mix whenever someone brings up yagni in the wrong context.

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Vaughn Vernon @vaughnvernon.bsky.social · 2d

YAGNI is too often a plague infecting otherwise good software design. It's a knee-jerk reaction to "I don't have a clue, so I'll ensure that I don't need to have a clue."

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Vaughn Vernon @vaughnvernon.bsky.social · 7d

Harbor water sounds appropriate. Thanks!

Vaughn Vernon @vaughnvernon.bsky.social · 7d

I have felt before like I'm in a fish bowl. Now I'll actually be in a fish bowl. 🐟 🐟 🐟 🐟

Question: Which Berlin bier 🍺 pairs best with fish food?

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Reposted by Vaughn Vernon

Software Architecture Gathering @sagconference.bsky.social · 8d

Software architecture in the age of #AI! 🤖 On the first evening of the Main Conference (Nov 25), join @ewolff.com , @vaughnvernon.bsky.social , Cheryl Hung, and Avraham Poupko, moderated by Lisa Maria Schäfer, in a dynamic #fishbowl discussion at #SAGconf! 🤩

👉 t1p.de/f3l7i

#SAG2025 #SpeakerPanel

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Reposted by Vaughn Vernon

Susanne Kaiser @suksr.bsky.social · 12d

Finallyyyyyyy 👏. I have not received my copies, yet, but I am happy to see they arrived safely at your home, @vaughnvernon.bsky.social 🤗

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Vaughn Vernon @vaughnvernon.bsky.social · 12d

Last week, I received a box full of the new printed book "Architecture for Flow" by @suksr.bsky.social

It's available on InformIT(.com) now and from Amazon with 1-2 day delay, which is likely because it's selling like hotcakes:

#8 in Software Design & Engineering
⭐️⭐️⭐️⭐️⭐️

Order yours today!

Book: Architecture for Flow by Susanne Kaiser #DDD #DDDesign #domaindrivendesign #WardleyMapping #TeamTopologies

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Vaughn Vernon @vaughnvernon.bsky.social · 14d

My next public workshop is scheduled for early December 2025. Don't miss it!

Upcoming Public Workshop:

"Implementing Domain-Driven Design Workshop"

December 8-11, 2025
14:00 CET (Berlin)
08:00 EST (NYC)

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kalele.io/iddd-workshop

Training: Implementing Domain-Driven Design Workshop #DDD #DDDesign

Book: Implementing Domain-Driven Design #DDD #DDDesign

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Vaughn Vernon @vaughnvernon.bsky.social · 14d

I'm have so much fun teaching my IDDDWorkshop this week!

Attendees received early access to some of my latest work, including my new blog post. It's a quick glance at my "Thoughts Regarding Software Development with AI"—and there's a lot more on the way. (1/2)

kalele.io/thoughts-reg...

Thoughts Regarding Software Development with AI | Kalele

Kalele Leading experts in Domain-Driven Design (DDD), Event-Driven, and Reactive Architecture. Providing consulting, programming, and world-class training services to clients who seek quality, expert ...

kalele.io

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Vaughn Vernon @vaughnvernon.bsky.social · 24d

Implementing Domain-Driven Design Workshop:

4 half days, 22-25 September
14:00 CEST (Berlin)
08:00 US EDT (New York)
Group discount available

Links below.

Registration:
kalele.io/iddd-workshop/

What you'll learn:
kalele.io/training/iddd/

IDDD Workshop from Kalele

Domain-Driven Design and Advanced Software Architecture Courses and Training

kalele.io

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Vaughn Vernon @vaughnvernon.bsky.social · 24d

A few days remain to register: Implementing Domain-Driven Design Workshop: DDD strategic and tactical modeling, architecture, collaboration tools.

Vital for legacy moderation and innovative core initiatives.

4 half days 22-25 September
14:00 CEST (Berlin)
08:00 US EDT (New York)

Details below ⬇️

Register for Vaughn Vernon's Implementing Domain-Driven Design Workshop to learn strategic design and tactical modeling with Event-Driven Architecture and practical lightweight tools.

Book: Implementing Domain-Driven Design by Vaughn Vernon

Book: Strategic Monoliths and Microservices—Driving Innovation Using Purposeful Architecture

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Vaughn Vernon @vaughnvernon.bsky.social · 24d

Can you imagine the level of irresponsibility in a person who boards a flight to meet with a client for a demo of vaporware and then slaps together a walking skeleton of what was promised? Even if it was actually usable software, the levels of urgency and risk in not even knowing if it would work 🤯

Vaughn Vernon @vaughnvernon.bsky.social · 25d

Don't you ❤️ how quickly the AI moon shot 🚀 🌚 trends are obsolete ⏰️ before they even take a 👣 foothold?

"Vibe coding is dead: Agentic swarm coding is the new enterprise moat"

Translation: Vibe code with multiple agents in different sessions.

venturebeat.com/ai/vibe-codi...

venturebeat.com

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Vaughn Vernon @vaughnvernon.bsky.social · 27d

Not wrong.

Compare working with AI vs. Human Engineers

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Vaughn Vernon @vaughnvernon.bsky.social · Sep 8

Registration:
kalele.io/iddd-workshop

What you'll learn:
kalele.io/training/iddd

IDDD Workshop from Kalele

Domain-Driven Design and Advanced Software Architecture Courses and Training

kalele.io

Vaughn Vernon @vaughnvernon.bsky.social · Sep 8

Join my Implementing Domain-Driven Design Workshop: DDD strategic and tactical modeling with practical lightweight collaboration tools.

Vital for legacy moderation and innovative core initiatives.

4 half days
22-25 September
14:00 CEST (Berlin)
08:00 US EDT (New York)
Group discounts

Details ⬇️

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Vaughn Vernon @vaughnvernon.bsky.social · Sep 4

Software hacking as a sport.

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Vaughn Vernon @vaughnvernon.bsky.social · Sep 4

I have an idea for a sports news headline.

_________ sends clear message to _________ over _________ of _________

Feel free to copy with optional preposition replacement. Everybody else does.

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Reposted by Vaughn Vernon

Software Architecture Gathering @sagconference.bsky.social · Sep 4

⏳ Only 1 week left to save up to €200!

Learn from 50+ top speakers including @vaughnvernon.bsky.social, Gregor Hohpe, Alistair Cockburn Cheryl Hung & Peter Hruschka! Join 40 sessions & 12 hands-on workshops, and network with tech leaders worldwide!

Get your #SAGconf ticket now! 👉 t1p.de/9l5pv

Software Architecture Gathering 2025 in Berlin | Very Early Bird Discount: Register until September 11 and save €200!

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