How to Create Effective Personas for Your Projects, Part 1

The persona is so important because it affects so many other pieces of the project -- discovery, design, QA, and even search engine optimization. A persona is the answer to the question "who are we doing all this work for?". What you know about him or her will inform your choices about how your site will be found, how it will look and how it will function.

Read Part 2 here