You can only create useful content if you understand your users and what they need to do. You need to find out:
- who your users are
- what tasks they are trying to do
- how they will use your content
- where your content needs to be published
For example, medical personnel use an app on different devices to track casualties across a battlefield. The content must be correct and easy to understand in a highly stressful environment.
Find out how to write less content.