Lifecycles and phase-out demand

Forecasting is a structured estimate for a defined decision, horizon and level of detail. This guide introduces lifecycles and phase-out demand and shows where it fits in a practical planning cycle.

Practitioner lens

A clear explanation of lifecycles and phase-out demand starts with a time plot and a definition of demand. Visual checks often reveal lifecycle or data patterns before any method is selected.

First experiment

Draw the series before fitting a model; mark missing periods, stockouts, promotions and calendar changes.

This is an original educational brief. It is a starting point for discussion, not a claim that one technique fits every supply chain.