Date post: | 08-Sep-2014 |
Category: |
Design |
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@MATHIASVERRAES
DESIGNMATTERS
DOMAIN-DRIVENWHY
Mathias VerraesStudent of Systems Meddler of Models Labourer of Legacy
verraes.net mathiasverraes
SET OF DESIGN PATTERNS?
SET OF DESIGN PATTERNS? METHODOLOGY?
SET OF DESIGN PATTERNS? METHODOLOGY?
TOTAL APPROACH TO DEALING WITH COMPLEXITY?
SET OF DESIGN PATTERNS? METHODOLOGY?
TOTAL APPROACH TO DEALING WITH COMPLEXITY?
PHILOSOPHY?
INFLUENCEORGANISATION!
⬇!
SOFTWARE
INFLUENCEORGANISATION!
⬇SOFTWARE
ORGANISATION
!
⬇
INFLUENCE- ORGANISATION -
- SOFTWARE - HARDWARE - - RESPONSIVENESS TO BUGS -
- CONTRACTS - THIRD PARTIES - - DEVELOPER HAPPINESS - TOOLS -
- TESTS - SKILLS - COMMUNICATION -
“IT IS AN AXIOM THAT INFLUENCE IS BOTH A
CAUSE AND AN EFFECT. NOTHING IS EVER
INFLUENCED IN JUST ONE DIRECTION.”
CHARLEY PETERS
“THE CAUSATION FALLACY:
!
EVERY EFFECT HAS A CAUSE AND WE CAN
TELL WHICH IS WHICH.”
GERALD M. WEINBERG
SYSTEMSGENERALTHINKING
“EVERYTHING IS A SYSTEM.
EVERYTHING IS PART OF A SYSTEM.”
GERALD M. WEINBERG
SYSTEMS!
Thinking about systems as dynamic, evolving patterns of
interaction and feedback.
“JUST CALLING IT ‘FEEDBACK’ DOESN'T MEAN THAT IS HAD
ACTUALLY FED BACK. IT HASN'T FED BACK UNTIL THE SYSTEM CHANGES COURSE.”
JOHN GALL
“IGNORING FEEDBACK MERELY MEANS THAT THE SYSTEM WILL EVENTUALLY
EXPERIENCE A MASSIVE UNPLEASANT SURPRISE (RATHER THAN A SMALL
UNPLEASANT SURPRISE).”
JOHN GALL
“IT MAY LOOK LIKE A CRISIS, BUT IT'S ONLY
THE END OF AN ILLUSION.”
GERALD M. WEINBERG
“SYSTEMS TEND TO OPPOSE THEIR
OWN PROPER FUNCTION.”
HENRI LOUIS LE CHATELIER
“SYSTEMS INHERENTLY
RESIST CHANGE.”
SCOTT PECK
“THE MORE ADAPTED AN ORGANISM IS TO
PRESENT CONDITIONS, THE LESS ADAPTABLE IT
TENDS TO BE TO UNKNOWN FUTURE
CONDITIONS.”SIR RONALD FISHER
“IT'S CALLED ‘SOFTWARE’ FOR A
REASON. IT'S SUPPOSED TO BE
EASY TO CHANGE.”UNCLE BOB?
DESIGNSOFTWAREHAS A SLOWFEEDBACK CYCLE
FAST ITERATIONLEAN STARTUP AGILE TDD BDD KANBAN
FAST ITERATIONLEAN STARTUP VALIDATED LEARNING
FAST ITERATIONAGILE COLLABORATE
FAST ITERATIONTDD DESIGN SMALL
FAST ITERATIONBDD COMMUNICATE
FAST ITERATIONKANBAN IMPROVE CONTINUOUSLY
(broad generalisations)
DESIGNGOES DEEPERDOMAIN-DRIVEN
DOMAINPROBLEM SPACE
DOMAIN MODELSOLUTION SPACE
DOMAIN&
DOMAIN MODELIN SYNC
KEEP
UBIQUITOUSLANGUAGE
DESIGNTACKLES
DOMAIN-DRIVEN
COMPLEXITY
ACCIDENTAL COMPLEXITY ESSENTIAL
COMPLEXITY
DESIGN PATTERNS
“DESIGN PATTERNS ARE A GATEWAY DRUG
TO DOMAIN-DRIVEN DESIGN”
ROSS TUCK
SUPPLE DESIGN
DECLARATIVE DESIGN
REFACTORING
BOUNDED CONTEXTS
DISTILLATION
LARGE SCALE STRUCTURE
MODELLING WHIRLPOOL
MODEL STORMING
DESIGNMATTER ?
DOMAIN-DRIVENSo WHY DOES
INFLUENCE FEEDBACK PATTERNS SYSTEMS
COMPLEXITY ITERATIONS
WHY CAN’T IT BE SIMPLE?
“A LARGE SYSTEM, PRODUCED BY EXPANDING
THE DIMENSIONS OF A SMALL SYSTEM,
DOES NOT BEHAVE LIKE THE SMALLER
SYSTEM”JOHN GALL
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