University learnersTrace and predictExample · 1 question · 2 min

Feedback in a Dynamic System

Trace reinforcing and balancing loops and predict the system's delayed response.

Answer
Feedback
Finish

Your example

Capacity feedback loop

Four linked parts: demand jumps from 80 to 112 orders a day; hiring starts at once; new staff need 14 days of training; usable capacity today is 80 orders a day.

Show data as a table

Node	Details
Demand	80 → 112 orders/day
Hiring	starts at once
Training	14 days until usable
Capacity	80 orders/day today

Choose one answer

Demand jumps from 80 to 112 orders a day. Hiring starts at once, but new staff need 14 days of training before they add capacity. What pattern is most plausible over the next five weeks?

Hiring reacts at once, so capacity rises at once and no backlog builds up.A backlog builds up during training, then shrinks once capacity exceeds demand.

Show a hint

Look for the link that does not act immediately: hiring is not yet trained capacity.

About this activity

What you practise: Use loop structure, polarity, capacity, and time delay together instead of reading every arrow as an instant effect.

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Demand jumps from 80 to 112 orders a day. Hiring starts at once, but new staff need 14 days of training before they add capacity. What pattern is most plausible over the next five weeks? Four linked parts: demand jumps from 80 to 112 orders a day; hiring starts at once; new staff need 14 days of training; usable capacity today is 80 orders a day. Hiring starts at once, but new people only add capacity after 14 days of training. Until then 112 orders arrive while 80 are handled, so the backlog grows by about 32 orders a day. It only shrinks once trained capacity rises above 112 orders a day.