LLD - Design — Food Delivery System
Why is it important to design an order tracking state machine with explicit allowed transitions rather than allowing any state change?
Why is it important to design an order tracking state machine with explicit allowed transitions rather than allowing any state change?
hard🧠 Conceptual Q10 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand the role of allowed transitions
Explicit transitions enforce valid order progressions and prevent errors.Step 2: Consider consequences of allowing any state change
Allowing arbitrary changes risks inconsistent or impossible order states, harming data integrity.Final Answer:
To prevent invalid order states and ensure data consistency -> Option AQuick Check:
Explicit transitions maintain order integrity [OK]
Quick Trick: Allowed transitions keep order data consistent [OK]
Common Mistakes:
MISTAKES- Thinking flexibility improves correctness
- Assuming fewer states means better design
- Confusing user control with system control
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