One of the best talks I've ever listened to. The description of coupling and cohesion was Correct, Understandable, and Terse. Sometimes you can get all three 😄

Goodness from start to end. Such much to unpack here. Also - looks and talks a bit like John Malkovich - never noticed that before. That's a movie I wanna see - Being Kent Beck.

Thank you so much for uploading this talk. Excellent talk and thank you Mr Beck for sharing your experience, knowledge and insights with us Geeks in the world ❤🙏

Another brilliant talk from the legend.

What a wonderful talk! Thanks Kent Beck! 🤩

Great talk. Looking forward to the books. Loved the Powell's Book store shoutout!!

Best talk on software design I’ve seen

Great talk, thanks

I liked the highlight that coupling/cohesion are respective to changes.

learned immensely.

The definition of "cohesion" here sounds just like Meilir Page-Jones's definition of "connascence." It's even characterized by strength, locality, and degree.

Great talk, looking forward to the books! Separating the behavioural and structural changes feels like another way to look at TDD in the green and refactor cycles, or possibly even an iteration on the TDD flow with red - refactor (tidying first) - green - refactor?

41:00 "lumpers and splitters". Ask the devs which type they are and their yoe and if they used to be the other type and at how many yoe they changed. Then you're able to tell what common developer wisdom is.

"Why are we still storing our code in files/directories?" Because Code Bubbles (Andrew Bragdon's project, not the unrelated startup) never caught on.

A beautiful talk. I have one question (nitpick?). Since coupling is defined wrt a delta, and cohesion is defined as an entity A whose components are coupled, it seems to me no easy thing to determine if A is cohesive since the space of possible changes is so large. Maybe this doesn’t matter in practice since the idea is to reduce cost of coupling by moving coupled components closer together (increasing cohesion)? Also you ask why we keep code in files - what is better alternative?

@KentLBeck

7 ай бұрын

Cohesion should also be defined wrt a particular change (or set of changes). Better than files of text in hierarchical directories would be a native AST store. We had this in Smalltalk way back when and it was glorious.

"Im glad I made it" lol...

I can't find this definition of coupling in structured design

I can't find Kent's definition of coupling and cohesion in structured design.

"Why are we still putting source code in files?" "Compared to what?"

@encapsulatio

7 ай бұрын

He is one of the lucky influential people in software development domain who programmed in Smalltalk in his early career and of course he's going to make inside jokes that only other people who know what Smalltalk could do 30-40 years ago is still space age technology compared to keeping source code as text files like we still do today.

@bonsairobo

7 ай бұрын

@@encapsulatio Are you referring to "image-based persistence"?

Easily watched at 1.25 speed :)

@AAZinvicto

2 ай бұрын

For me it was 1.5

@mlntdrv

12 күн бұрын

I am a bit of a genius myself as well.

He should be writing the 3rd book first because that is what helps in identifying what changes come in.

Boring. Lifecoaching becomes a valid excuse when there is no engineering.