You could freely change the way the data is internally represented while continuing to expose the same external interface. 您可以自由改变数据的内部表示方式而继续公开相同的外部接口。
This algorithm, based on the principles of pairwise testing, considers all possible values and their combinations on extern interfaces of a system. 该方法充分考虑到待测软件所有外部接口参数的可能取值和各种可能取值的组合。
