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Bert's Signature Epiphany
- Eric Normand's friend Bert realized he could implement functions easily once he had their signatures written out.
- Bert's object-oriented background never led him to think in terms of function signatures first.
Power of Function Signatures
- Function signatures contain key information that guides implementation and design.
- Names and types of arguments convey essential details but leave room for human interpretation.
Start with Operation Modeling
- Write all function signatures based on operations before choosing data structures.
- Operation modeling helps ensure design supports the user's use cases effectively.