Final answer:
In user-centered design, a scenario is a story-like textual description of a system's usage that helps designers understand user interactions and make informed decisions during development.
Step-by-step explanation:
In user-centered design, a scenario is a story-like textual description of a system's usage. It is a narrative that describes how a user interacts with a product or system, highlighting the different steps and actions taken. A scenario helps designers understand the user's goals, needs, and motivations, and guides the decision-making process during development.
For example, let's say a team is designing a mobile banking app. They can create scenarios that depict different user tasks like logging in, transferring funds, or checking account balance. These scenarios help designers anticipate user interactions, identify pain points, and design solutions that meet user expectations.