Apply Little's Law to estimate queue waiting time and identify when throughput cannot keep up with arrivals.
Invoice queue has 18,000 jobs waiting, 900 new jobs arriving per minute, and 600 jobs completing per minute. Little's Law: average time in system equals work in process divided by throughput, and a queue grows when arrivals exceed completions. Looking only at worker health hides customer wait. A queue can grow while every worker appears busy and healthy. Estimate wait 18,000 queued jobs / 600 completed per minute = 30 minutes of existing work. This translates backlog into a time estimate stakeholders can understand. Check stability Arrivals 900 per minute - completions 600 per minute = 300 extra jobs per…
Sign up free — one personalized lesson every day, matched to your role and goals.
Already have an account? Sign in