Deja Vu

Pair programming is a software development technique in which two programmers work together at one keyboard. One types in code while the other reviews each line of code as it's typed in. The person typing is called the driver. The person reviewing the code is called the observer[1] or navigator. The two programmers switch roles frequently (possibly every 30 minutes).

[取自wiki]

簡單來說就是兩人一起寫程式

一人檢查 一人寫

的確是會比較有效率啦

但也會很累人.............