Slide 1
Slide 1 text
Crunching 'real-life stories'
with DDD EventStorming
and combining it
with BDD techniques
Slide 2
Slide 2 text
Kenny
Baas-Schwegler
Software Consultant - EventStormer
Domain Driven Design
Behaviour Driven Development
Continuous Delivery
@kenny_baas
Baasie.com
xebia.com/blog/author/kbaas/
Slide 3
Slide 3 text
No content
Slide 4
Slide 4 text
No content
Slide 5
Slide 5 text
No content
Slide 6
Slide 6 text
No content
Slide 7
Slide 7 text
No content
Slide 8
Slide 8 text
No content
Slide 9
Slide 9 text
It is not the domain experts knowledge
that goes to production, it is the
assumption of the developers
that goes to production
- Alberto Brandolini
Slide 10
Slide 10 text
No content
Slide 11
Slide 11 text
No content
Slide 12
Slide 12 text
No content
Slide 13
Slide 13 text
No content
Slide 14
Slide 14 text
No content
Slide 15
Slide 15 text
To communicate effectively, the code must be based on the
same language used to write the requirements
- the same language that the developers speak
with each other and with domain experts
- Eric Evans
Slide 16
Slide 16 text
We all know or should know that language is fluid, liquid, subject to the
whims of the people. Language evolves, as it should. Because language
changes to accommodate new users, the older users resist and complain.
http://tednellen.blogspot.com/2013/04/language-is-fluid.html
Slide 17
Slide 17 text
No content
Slide 18
Slide 18 text
No content
Slide 19
Slide 19 text
No content
Slide 20
Slide 20 text
No content
Slide 21
Slide 21 text
No content
Slide 22
Slide 22 text
Confirmation Bias
Slide 23
Slide 23 text
No content
Slide 24
Slide 24 text
https://lizkeogh.com/2015/09/09/on-epiphany-and-apophany/
“Apophany” that moment when a sufferer says,
“Oh! I get it!” when they really don’t.
- Liz Keogh
Slide 25
Slide 25 text
No content
Slide 26
Slide 26 text
https://lizkeogh.com/2015/09/09/on-epiphany-and-apophany/
Build beliefs
Draw conclusions
Generate assumptions
Filter data
Observe data
Slide 27
Slide 27 text
No content
Slide 28
Slide 28 text
No content
Slide 29
Slide 29 text
The greatest obstacle to discovery is not ignorance -
it is the illusion of knowledge.
- Daniel J. Boorstin
Slide 30
Slide 30 text
No content
Slide 31
Slide 31 text
No content
Slide 32
Slide 32 text
No content
Slide 33
Slide 33 text
Big Picture
Process Design
and Modelling
Software
Modelling
Slide 34
Slide 34 text
No content
Slide 35
Slide 35 text
No content
Slide 36
Slide 36 text
No content
Slide 37
Slide 37 text
No content
Slide 38
Slide 38 text
No content
Slide 39
Slide 39 text
No content
Slide 40
Slide 40 text
Every tool has his or hers blind spots. That blind spot might as
well be your million dollar mistake.
Slide 41
Slide 41 text
No content
Slide 42
Slide 42 text
No content
Slide 43
Slide 43 text
No content
Slide 44
Slide 44 text
No content
Slide 45
Slide 45 text
No content
Slide 46
Slide 46 text
No content
Slide 47
Slide 47 text
No content
Slide 48
Slide 48 text
No content
Slide 49
Slide 49 text
No content
Slide 50
Slide 50 text
All models are wrong, but some are useful,
and some are useless, and some are outright damaging.
Sometimes a model only gives you the illusion of control.
- Multiple people (Attributed to George Box)
Slide 51
Slide 51 text
Try at least to find three models,
even if you think you already found
the “right model”
Slide 52
Slide 52 text
Don’t cling to a mistake
Just because you
spend a lot of time making it.
Slide 53
Slide 53 text
Every tool has his or hers blind spots. That blind spot might as
well be your million dollar mistake.
Slide 54
Slide 54 text
No content
Slide 55
Slide 55 text
Software Development is
a learning process, working code is a
side effect
- Alberto Brandolini
Slide 56
Slide 56 text
Serious software development is
the practice of symmathesy.
“Sym” = together, “mathesy” = learning.
- Jessica Kerr
Slide 57
Slide 57 text
#CatTax
@kenny_baas
Baasie.com
xebia.com/blog/author/kbaas/
https://speakerdeck.com/baasie