Before anyone can recalculate, the case file has to be gathered from four systems.
The objection arrives by letter or email and rarely names the item in dispute. The case handler fetches meter readings from the billing system, the price sheet from the contract, the instalment plan from the customer account and previous correspondence from the case file. Then she recalculates the disputed period, and the answer differs depending on who gets the case.
1objection letterTwo pages of text, with no mention of the disputed invoice item.
4source systemsMeter readings, price sheet, instalment plan and correspondence are kept separately.
35 minutesbuilding the case fileBy the time everything is together, half the processing time is gone.
3recalculationsConsumption, unit price and instalment offsetting are checked one by one.
The case handler starts with the recalculation instead of hunting for the price sheet, the 35 minutes of building the case file disappear, and the case is resolved 55% faster.
The 55% faster case resolution is this agent's headline figure. The four source systems, the 35 minutes of building the case file and the three recalculations are modelled on a typical case in energy billing; none of it was measured.