Agile software development has become fairly popular in the last few years, leaving many UX professionals wondering how user-centered design (UCD) can fit into an extremely fast-paced development process that uses little documentation. User-centered design can involve a variety of techniques that provide insights into users' wants, needs, and goals, including ethnography, contextual inquiry, contextual interviewing, usability testing, task analysis, and others. But all of these take time--time that an agile development process might not allow. There is hope, though. Agile and UCD methods are not completely at odds with each other--and in some cases, agile development can even enable a more user-centered approach. By taking the time to understand the differences and similarities between agile development and UCD, it's possible to devise a process that is both user-centered and agile.