Answer:
Product development
Step-by-step explanation:
A manufacturer tests, modifies, and retests an original idea several times before offering it to the consumer. This process is called product development.
A product life cycle can be defined as the stages or phases that a particular product passes through, from the period it was introduced into the market to the period when it is eventually removed from the market.
Generally, there are four (4) stages in the product-life cycle;
1. Introduction.
2. Growth.
3. Maturity.
4. Decline.