1. Choose types that preserve meaning
TASK: Inspect one order and line dictionary. Classify each field and predict the result of multiplying text "2" by 3 versus integer 2 by 3.
Your method:
Your evidence/result:
Limitations and next action:


2. Iterate with a clear population rule
TASK: Trace the first three completed lines through the month accumulator, then run worked_lab.py. Explain the role of get(key,0).
Your method:
Your evidence/result:
Limitations and next action:


3. Test boundaries and explain the result
TASK: Write three invariants and one changed-input test. Explain the reported grand average order value.
Your method:
Your evidence/result:
Limitations and next action: