Tasks related to case studies can be categorized into five general types: (1) simple tasks,(2) problem tasks, (3) decision tasks, (4) judgment tasks, and (5) fuzzy tasks.

• 任务有关的个案研究，可分为五个基本类型：（1）简单的任务，（2）问题的任务，（3）决定的任务，（4）判断的任务，和（5）模糊的任务.