1. How Domain-Driven
Design Helps You to
Migrate Into the Future
Karsten Dambekalns <karsten@typo3.org>
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Dienstag, 5. Oktober 2010

2. Code Data
Mind
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3. Migrate Your Mind
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4. Migrate Your Mind
Get rid of old habits
• No more quick’n’dirty fixes
• No longer think in “tables”
Embrace new paradigms
• Start using Test-Driven Development
• Practice Domain-Driven Design
• Get up to speed with Design Patterns
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5. Literature
Domain-Driven Design
Eric Evans, Addison-Wesley
Applying Domain-Driven Design and Patterns
Jimmy Nilsson, Addison-Wesley
Patterns of Enterprise Application Architecture
Martin Fowler, Addison-Wesley
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Dienstag, 5. Oktober 2010

6. Migrate Your Code
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7. Migrate Your Code
That is actually the easy part, if you
migrated your mind early
You mostly need to throw away old cruft
Rename and replace are important
operations
Then adjust controllers and repositories
as needed
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Dienstag, 5. Oktober 2010

8. Migrate Your Data
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Dienstag, 5. Oktober 2010

9. Migrate Your Data
Regular content will be easy to migrate using
out-of-the-box tools
• That includes website content, users, files, ...
Custom content migration will be supported but
depends on custom additions
• Target system needs to understand the data
• Migration rules need to be implemented
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10. Questions!
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11. Give feedback at
http://joind.in/1677
Follow me on
http://twitter.com/k_fish
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12. Dienstag, 5. Oktober 2010