Looks like Kent Becks' Explore, Expand, Extract: https://medium.com/@kentbeck_7670/fast-slow-in-3x-explore-expand-extract-6d4c94a7539 https://medium.com/@kentb

Looks like Kent Becks' Explore, Expand, Extract: https://medium.com/@kentbeck_7670/fast-slow-in-3x-explore-expand-extract-6d4c94a7539 https://medium.com/@kentbeck_7670/fast-slow-in-3x-explore-ex...