Chapter 3. On-Site Customer

An XP project needs a full-time customer to provide guidance. Here's a summary of why.

Programmers, we all know, will program anything. The trick is to tell them what's needed. In general, what's needed is called "requirements," probably to make it sound more important. In XP, we communicate what's needed using User Stories User stories, written on cards, are the core of the XP planning process (see Chapters 8 and 9), and they belong to the people with the requirements. We call these people the Customer—and we ask them to be with the project all the time. Before you read about creating user stories, here's why we ...

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