The purpose of a dissertation is to add to the existing pool of knowledge. To do that, you must make sure you choose a topic that you can put a real original and unique twist on. The following ideas will give you a starting place, but merit further research and study in order to narrow down to something that truly needs more done to expand available knowledge.
You will need to set clear and concise research objectives and aims. Your paper involves studying, finding, analyzing, producing results and presenting the entire package. The sooner you start writing the better. You want to keep time on your side, as your ally. Delaying the writing process only puts off the inevitable and makes you more anxious because of the lack of time to finish.
When you are writing, write as continuously as possible. If you are on a roll, keep going. Write knowing that you will be editing and rewriting much of what you have done. It’s all part of the polishing process, and is very necessary. That’s what makes a good paper into a great one. Don’t try to write your final draft on the first try. When you get stuck on one section, move to another. If the writing gets difficult, change what you are doing and then get back to it quickly.