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Systems Thinking · 6 essays ·
all 31 field notes →
2026.09.14 · 8 min
Turn the Sequence Diagram on Its Side
The people who can tell you a boundary is wrong were never going to read UML. Turn the sequence diagram on its side and they do not have to.
#software-architecture
#systems-thinking
2026.09.07 · 8 min
We Deleted the Wrong Half of Agile
Reviewability is something you design. Extreme Programming already knew how, and we made exactly the wrong half of it optional.
#software-architecture
#engineering-leadership
2026.08.24 · 6 min
Design the Stopping Point
Target state is the easy half of a solution design. The hard half is the first step, because that is usually where the money runs out.
#software-architecture
#technical-debt
2026.08.10 · 6 min
Adoption Is the Deliverable
The ugliest service in production beats the most elegant one nobody calls. So where exactly does an architect's job end?
#software-architecture
#domain-driven-design
2026.07.27 · 5 min
A Feature Is Not a Service
The ticket said "saved filters". The real decisions were which service, whose identity, and how little to invent.
#software-architecture
#domain-driven-design
2026.07.13 · 5 min
Mathematicians vs. Lawyers
Two thinking archetypes I keep meeting in architecture rooms, and why your system needs both.
#software-architecture
#systems-thinking