XP, Dear XP … December 8, 2006 / Matt Heusser / Agile / 1 Comment Extreme Programming in Japan? You’ve got to see this video. Don’t worry, it has subtitles, and it’s only three minutes long. Matt HeusserMatt has deep experience in software testing, project management, development, writing, and systems improvement. His extensive network of contacts in these fields has enabled him to put together a diversified, high-level team of experts at Excelon.