1.1 Try to highlight specific key words in the question so you understand what it is asking of you.
1.1.1 Plan, figure out a specific position in business and management you particularly want your dissertation to be in.
1.2 Recall upon your understanding with specific modules pertaining to that subject.
1.2.2 Use your knowledge throughout your previous years to guide the academic skills learnt to shape a position of study in planning what you will write your investigation on and how you want to approach it.
1.3 If you have taken a year in industry, you can write your dissertation in preference to the organisation you achieved work experience in.
1.3.3 Look at previous examples of dissertations, use them as a guideline. If anything, look into their grammar and associations made between them.
hope that helped.