Domain Modeling · interview question
Which move is the best default when instance methods becomes part of this workflow?
Multiple choiceMediumchapter-7-curatedpremiumdomain-modelinginstance-methods
Answer and explanation
Correct answer
B. Keep behavior on the object when it mainly exists to answer a question about that object's own state.
Why
Keep behavior on the object when it mainly exists to answer a question about that object's own state. That is the stronger engineering move because candidates sound stronger when they explain why a method belongs on the object instead of in a utility module. If every operation stays outside the object forever, the model can become a passive bag of fields.
Test yourself on Domain Modeling
A free test with instant, explained results. No account needed.
More Domain Modeling questions
- If mini domain model fails in production, what handling philosophy is strongest?
- Which judgment is strongest when choosing a data shape for invariants in __post_init__?
- Which explanation would sound strongest in an interview when discussing instance methods?
- Which option is the safer default when shipping code around invariants in __post_init__?
- A senior interviewer asks for one tradeoff behind instance methods. What is the strongest follow-up?
- What production risk should you worry about most if properties and encapsulation is handled lazily?