If your report cannot grab and hold the attention of your audience, your message will be lost.
The needs and interests of your audience should determine the viewpoint that you present, the level of detail in your report, and the amount of background and supplemental information that you provide.
Knowing your audience helps you create a more effective report that will engage them, reduce confusion, and enable them to more easily understand and analyze the information that you are presenting.
If your audience consists of distinct groups, considering individual requirements and constraints beforehand will help you meet everyone's expectations.