Exam-style question
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Using Python, write a small composition abstraction that combines three procedures: one to obtain data, one to process the data and one to display the result. Explain how the three procedures form a compound procedure.
Model answer
What a good answer should say
- def get_data(): return 8 def process_data(value): return value * 2 def display_data(value): print(value) def run_task(): data = get_data() result = process_data(data) display_data(result) run_task() The procedure run_task is a compound procedure because it combines calls to get_data, process_data and display_data.
- The smaller procedures are combined to create one larger operation.
Explanation
Why this works
The answer demonstrates composition by combining several procedures into run_task. Each smaller procedure performs part of the operation, while run_task forms the larger compound procedure.
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