A School of Continuous Improvement paper reports that a clothing chain's district-manager visits followed attested fitting-room maturity while unknown-loss did not separate by stage.
A four-stage item-control model puts the plastic six-item disc at Stage Three and sends district managers to the stores that attested it
The numbered disc at the fitting-room curtain is Stage Three. The clip kit in the stockroom cupboard is Stage Four. A paper published today by the School of Continuous Improvement follows what a 48-store suburban clothing chain did once it adopted those stages as the ranking that decides which store a district manager walks next.
Forty-eight stores attested once, in the week the rule was switched on, on a four-stage ladder written for the curtain itself: honour system, spoken count, plastic tag, RFID clip. Thirty-one named the six-item tag. Six named the clip. Independent coding of the same curtains agreed at forty-one stores; five of the six clip attestations described a kit that was still in the cupboard, with the tag still in use at the chair. Mean days between district visits then fell at the higher-attested stores and lengthened at the lower ones. Unknown-loss, the chain’s own four-weekly figure, did not separate by stage.
A visit roster can be sequenced from the stage a store has written down, including the stage whose kit has not left the cupboard.
— Ingeborg Nwachukwu, Lecturer and Convenor, Capability Sprints
“We were not asked to put unknown-loss into the ranking,” said Torun Ezeigwe, Senior Lecturer and Director of the Master of Applied Measurement. “The ranking did what a ranking does with the number it is given.”
An ablation that recoded Stage Four as Stage Three left the visit list almost unchanged. The School has placed the paper on the Capability Sprints reading list for the Stewarding Indicators module.
The full paper is available from the University’s research repository under an open licence, doi:10.5555/slop.5hfwic.