What does 开题 mean here? I'm supposed to write a thesis for my 成人教育 course. A teacher has been appointed. I can only contact him by email and I think he only looks at his email once a month, there is a long latency period. I sent in a proposal. 

His reply was: 结构合理同意开题

Does this mean I can start on the thesis, or he wants a more detailed report of the thesis??

开题到底是什么意思？
结构 : structure

合理 : makes sense

同意 : agree

开题 : start topic (thesis in your case)

结构合理同意开题  means 

Your structure makes sense and I agree that you can start on the thesis.