Using the Pressure & Temperature Graphs: Q: Find the pressure at a depth of 1500 km. A: Find 1500 on the bottom axis and follow the green line up to the black line on the pressure graph. Go left to find the pressure: 0.5 million atmospheres (atm). Reverse the process......
Extreme Programming (XP) is a pragmatic approach to program development that emphasizes business results first and takes an incremental, get-something-started approach to building the product, using continual testing and revision. The Benefits of a DevOps Approach.
Kent Beck, author of Extreme Programming Explained: Embrace Change, developed the XP concept. According to Beck, code comes first in XP. However, Beck emphasizes that in order to write the code, you have to write a test for it first so that you will know when your code succeeds.