Column definition - the column definition is where you will define the periods and actualities to be used in the report.
列定义—列定义是您定义要在报告中使用的期间和现状的地方。
2
The design debt metaphor was first used by Ward Cunningham in his OOPSLA 1992 experience report 1, where he described the common practice of using a little temporary debt to speed up development.