The backlog is the to-do list of your project, and is where you keep all of your incomplete features (usually represented as stories). When you first start, you may have an empty backlog, so the first step is for the product owner and the team to work together to populate it with stories and tasks that need to be completed. During this step, it works more like a brainstorming session, where the team works together to translate requirements from customers and other stakeholders into actionable stories and tasks.