Two reports can look comparable while using different periods, quantities or identifiers. A definition register helps a person understand what is being compared before making an account decision.
Record the meaning of each file
- Name the seller store and the product identifiers used.
- Keep the reporting period and export time with the file.
- Describe whether the values refer to orders, shipments, returns or available stock.
- Record currencies and the treatment of relevant charges.
- Identify who owns the report and who answers a question about it.
Amazon notes the snapshot nature of inventory reports. Intervening orders or movements can explain a difference between exports without either file being wrong.
Keep the decision attached to its inputs
Write the question being answered, the files used and the uncertainty that remains. Save the chosen action with those inputs so a later reviewer can understand the decision in its original context.
If a report definition changes, record the change instead of treating the new file as directly comparable with an older one. Keep the revised definition with the reports affected by the change so the next reviewer can compare them appropriately.