The opening report is the expectation of the thesis writing after the topic is determined, including the background, summary, framework, research design, methods and processes, as well as the problems you need to solve and the feasibility report. You can't start writing a paper until the opening report is passed!
Thesis is the final presentation of your research results, and its structure and content can be modified by yourself when writing.
When writing the opening report, the general tutor will give you the template in advance. Just follow the template. It's very simple. Then the paper is based on the opening question you finally passed!