# Ron Jeffries ![[50 Resources/51 Attachments/51.03 Public/2026-03-18 Ron Jeffries.jpg|400]] Ron Jeffries is an American software developer and one of the three founders of [[Extreme Programming (XP)]], alongside [[Kent Beck]] and [[Ward Cunningham]]. He was one of the original signatories of the [[Agile Manifesto]] and served as the first XP Coach on the Chrysler C3 project where XP was born. Jeffries is known for creating the [[3 C's of User Stories]] (Card, Conversation, Confirmation) and for his practical, sometimes contrarian perspectives on agile development. ## Key Contributions - **[[Extreme Programming (XP)]]**: Co-founder with Kent Beck and Ward Cunningham - **[[Agile Manifesto]]**: Co-author of the founding document - **[[3 C's of User Stories]]**: Card, Conversation, Confirmation framework - **XP Coaching**: First XP Coach on the original Chrysler C3 project ## Notable Books - *Extreme Programming Installed* (2000) - *Extreme Programming Adventures in C#* (2004) - *The Nature of Software Development* (2015) ## Quotes <!-- QueryToSerialize: LIST FROM #type/quote AND [[Ron Jeffries]] WHERE public_note = true SORT file.name ASC --> ## Books <!-- QueryToSerialize: LIST FROM #type/book AND [[Ron Jeffries]] WHERE public_note = true SORT file.name ASC --> ## References - https://en.wikipedia.org/wiki/Ron_Jeffries - https://ronjeffries.com ## Related - [[Agile Manifesto]] - [[Extreme Programming (XP)]] - [[Kent Beck]] - [[Ward Cunningham]] - [[3 C's of User Stories]]