The term "product pipeline" refers to a company's plan or schedule for developing, producing and marketing new products. It is an outline of all the stages involved in bringing a product from conceptualization to completion, including research, design, development, testing, production, distribution, and promotion. The phrase can also refer to the sequence of steps required to create a specific product, such as a software program or hardware device. In this context, "pipeline" refers to the process of moving data or information through each stage in a systematic manner until it reaches its final destination.