How To Write An Essential Requirement Success Plan . Write a detailed description of the user’s actions and how the system should respond. Helps you understand your biases. How To Develop A Business Plan ThinkThyme from thinkthyme.com The areas above the red dotted line are the strategic parts of the plan. Project success criteria are derived from the project deliverables and the project benefits. For example, a customer is an external stakeholder, while a department manager or board member.