Measure first.Then improve.

• Savings Calculator (ROI)Enter your own figures. Every published rate starts at its cautious end and names its source.
• OEE CalculatorFrom one period's time and output: availability, performance, quality, OEE and TEEP, and the hours each loss takes.
• Downtime Cost CalculatorIdle people, margin never made, overtime, restart scrap and repairs, from your own figures, an hour and a year.
• Inventory CalculatorStock turns, days on hand and the yearly cost of carrying stock, with the safety stock and reorder point for one item.
• Reliability CalculatorFrom operating time, failures and repair time: MTBF, MTTR, failure rate, availability, and the chance of a run without a failure.
• Quality CalculatorFirst pass yield, rework and scrap, defects per million, process capability and the cost of poor quality, from your own figures.
• Digital Maturity CheckFour questions on people and machines, systems, organisation and culture, placed on the six stages of the acatech Industrie 4.0 Maturity Index.

• Operations KPIsThe indicators that show how a warehouse, a production line, maintenance and quality are doing: what each one shows and how it is worked out.

Every definition comes from a standard, a university study or a public body: ISO, IEC, CEN, Eurostat and the professional associations of each field. No software vendor is cited.