Final answer:
Allowing customers to request additional features or incremental deliveries is an example of the 'Establish pull' Lean methodology principle. It ensures products or features are created to meet direct demand, avoiding excess inventory and waste.
Step-by-step explanation:
To create the most value for the customer by ensuring they can ask for additional features or incremental deliveries throughout the value stream is an example of the Lean methodology principle known as Establish pull.
This principle focuses on fulfilling customer needs on a just-in-time basis, which means that products or features are created only when there is a direct demand, reducing waste and ensuring that the output is aligned with the customer's desires.
It contrasts with push systems, where products and services are created before the demand is clarified, often leading to excess inventory and wasted resources.