Calculating and Testing a WIP Target
Estimate average WIP using Little’s law and distinguish it from an inventory target or protective buffer.
WORKSAMP · LEARNING RESOURCES
Results and decisions
Proportions, time, capacity and improvement decisions grounded in data.
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Statistical foundations
Sample size, precision, confidence intervals and the limits of inference.
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Observation plans, categories, routes and reliable data capture.
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Proportions, time, capacity and improvement decisions grounded in data.
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Examples and limits in manufacturing, maintenance and services.
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Showing 1–12 of 17
Industrial 360° Audit: Simulated Case and ROI
A simulated industrial audit: example data and conditions for estimating released capacity, benefits and returns.
Work Sampling ROI: Costs and Benefits
Calculate study costs, benefits and returns while separating released capacity, realised savings and financial assumptions.
Work Sampling for SMEs: A Practical Guide
Prepare a work sampling study in a small business: scope, categories, observations, interpretation and follow-up decisions.
Introduction: The hidden pulse of productivity
What buffers and WIP observations reveal, how to apply Little’s law and what data are needed to size them.
Pareto Law in Delays
Build and interpret a delay Pareto chart without treating the 80/20 rule as a law every dataset must follow.
Definition and Operational Context: Beyond a Simple Stop
Distinguish planned and unplanned delays and keep consistent denominators when calculating indicators.
Load Balancing Between Operators
Compare workloads using observations, time coverage and complementary measures before reallocating tasks.
Calculating Standard Time from Work Sampling
Estimate time per unit from sampling and identify the production, rating and allowance data required for standard time.
Micro-stops and Their Impact on Performance
Estimate time lost to minor stops, understand duration measurement and relate the findings to equipment performance.
CAPEX vs OPEX Diagnosis with Work Sampling
Use activity findings to assess investment and operating alternatives without promising automatic financial returns.
Difference Between Delay and Unproductive
Distinguish delays, necessary activities and inactivity using definitions that avoid judging the people observed.
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