1. Introduction: Explain what the proposal is for and your reasons behind writing the proposal. For example: Does a problem need solving? Or are you suggesting a counterproposal to a proposal you disagree with?
2. Give some arguments to support your proposal by highlighting some pros (voordelen). If you're writing a counterproposal, you should also include some cons about the original proposal. Use facts to back your arguments, not opinions.
3. Write a plan on how to implement your proposal (timeline, who's responsible for what, budget, etc.)
4. Conclusion: Summarise the pros (and cons) and conclude with your final proposal about the decision to be made.