I assume they mean pair programming [1], user stories which are used in agile methodologies [2], and test-driven development [3]. [1] https://en.wikipedia.org/

I assume they mean pair programming [1], user stories which are used in agile methodologies [2], and test-driven development [3]. [1] https://en.wikipedia.org/wiki/Pair_programming https://en.wikipedia.org/wiki/Pair_programming [2] https://en.wikipedia.org/wiki/User_story https://en.wikipedia.org/wiki/User_story [3] https://en.wikipedia.org/wiki/Test-driven_development https://en.wikipedia.org/wiki/Test-driven_development