关于CU Boulder的Personal Statement和Statement of Purpose

先贴上Personal Statement的要求
Please upload a document briefly describing your past work in your proposed or allied fields of study, including non-course educational experiences, teaching, or other relevant employment, publications, theses, research in progress, other scholarly activities, and your plans for graduate study and a professional career.   

然后是Statement of Purpose的要求：
A Statement of Purpose regarding why you want to pursue graduate work in Computer Science and what you would like to do after you have received your graduate degree.

高亮差不多是一样的吗，都要上传是何解