Paul Rayner

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Software Analytics - Data-Driven Improvement of Software Quality Here is the complete slidedeck of the complete workshop on Software Analytics. In this workshop we analyze data-driven software systems as well as th…

Just published under Creative Commons BY-SA: the complete slide deck from my 2022 Software Analytics workshop. A deep dive into how data can help us understand and improve software systems. I believe this is becoming even more relevant in the age of AI.

speakerdeck.com/feststelltas...

Sara Pellegrini will talk about killing the aggregate (volume 3).

#KanDDDinsky #KDDD

About Event Sourcing & CQRS with @heimeshoff.bsky.social and @paulrayner.bsky.social in 30 minutes!
youtube.com/live/4idWySy...

Have been looking forward to this talk coming out - had so much fun playing with the loopy causal loop diagrams, check it out 😀

Special thanks to @paulrayner.bsky.social for feedback and advice the night before this one! @dddeu.bsky.social #systemsthinking

In this talk Chris Simon will demonstrate the building of a range of causal feedback loops to visualise the underlying causes of the problems. With such visualisations we can advocate for the practices of technical excellence:
🎬 buff.ly/HADjm2P

ICYMI: I wrote about how your domains and bounded contexts don't map 1 on 1. #DDDesign
verraes.net/2025/08/doma...

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No, don't do that! Don't build Microservices that slow it down.

Join @crichardson.bsky.social to learn proven techniques for designing successful microservice architectures.

December 2 - 3 - 4, 2025
Milan, Italy
Sign up 👇

www.avanscoperta.it/en/training/...

Claude Code agents handled the tedious bits while I focused on structure. Not magic, but saved me days of manual work.

Full story: thepaulrayner.com/blog/2025/09/15/cleaning-up-93-grammar-paradigms-with-ai-agents/

Bluesky Alt Text Rating courtesy of cred.blue/alt-text

I have a lot of room for improvement! 😱

EventStorming Timeline Example

Early-bird pricing for my 𝗘𝘃𝗲𝗻𝘁𝗦𝘁𝗼𝗿𝗺𝗶𝗻𝗴 𝗙𝗮𝗰𝗶𝗹𝗶𝘁𝗮𝘁𝗶𝗼𝗻 𝗪𝗼𝗿𝗸𝘀𝗵𝗼𝗽 (Oct 7–10) ends 𝗺𝗶𝗱𝗻𝗶𝗴𝗵𝘁 𝗧𝗼𝗻𝗶𝗴𝗵𝘁.

Past attendees have called it:
- “Engaging, insightful, practical”
- “Interactive, fun, eye-opening”

Save $200 now → ti.to/EDDD/eventst...

3 Things the Winners Do with new tech:
1. Deeply understand it
2. Learn how to use its strengths, get around weaknesses
3. Adapt your domain to the tech.
@adamhjk.me #o11yDay @honeycomb.io

We have to change what we do to get the most out of the tech.

Want to send a group? We also have group discounts off both earlybird and regular tickets:

3-5 tickets: $100 off each
6+: $200 off each

EventStorming timeline example

⏰ Final call!

Early bird for my 𝗘𝘃𝗲𝗻𝘁𝗦𝘁𝗼𝗿𝗺𝗶𝗻𝗴 𝗙𝗮𝗰𝗶𝗹𝗶𝘁𝗮𝘁𝗶𝗼𝗻 𝗪𝗼𝗿𝗸𝘀𝗵𝗼𝗽 (Oct 7–10, 2025) expires this 𝗙𝗿𝗶𝗱𝗮𝘆, 𝗦𝗲𝗽𝘁 𝟭𝟮 𝗮𝘁 𝗺𝗶𝗱𝗻𝗶𝗴𝗵𝘁.

⚡ Save $200 per ticket before the deadline.

👉 ti.to/EDDD/eventst...

Big Picture EventStorming voting example

Collaboration is hard. EventStorming makes it easier.

Join my virtual workshop Oct 7–10, 2025.

⚡ Early bird ends Sept 7 — $200 off.
👉 ti.to/EDDD/eventst...

Learn to model complex domains, align teams & design better solutions.

Arrived in Boston today to facilitate an in-person Big Picture EventStorming workshop tomorrow and Wednesday.

Curious what unexpected connections, ‘aha’ moments, and opportunities will emerge as the shared story is visualized on the wall.

That's when I reach for the ESC key :)

Yes, one of the Claude Code agents is "test automation specialist"

No. I'd not even heard of it. Fascinating!

Claude Code says it's done executing the Supabase/Stripe integration implementation plan. I clear the other CC session and have agents review *actual* progress and update the plan doc.

It was @nick-tune.me who tuned me into using plan mode and it's been a game changer this this week or so.

What kinds of things have you seen?

Such as...

working on refining a plan document in plan mode and getting that where I want it, and then switching to code mode to implement step 1 has been working well

It turns into a living mix of PRD, design, and architecture - enriched with HTML mockups, real-data examples, & questions like “What are we missing?” to catch gaps early. I /clear often, & use the plan as the working document to pick up the next step to implement. So far it's been working well.

I’ve been working exclusively in Claude Code lately. For new features, I've typically spent no more than half a day (usually much less) drafting a plan in “planning mode,” then let it evolve as I build. Small slices, lots of iteration and learning.

After 6 wks of tinkering in Bolt.new and Claude Code, I’m down to the last mile before releasing BINAH, my passion project. Integrating paid subscriptions via Supabase + Stripe. Launch coming soon!

Setting Macbook Pro Siri voice to Australian

The entry in my claude.md that makes coding just that little bit more fun for me 😎

- **Task completion**: Always `say "Done"` when completing significant tasks

Very honored to be speaking at #AdaConf 2025 this Nov in Melbourne!