The description of the user character.

Describe the background of the user character in some detail. Sketch out some facts to visualize the context the character lives in. This may include some demographic information.

List the needs you assume the user character has from a brainstorming session. This may lead to hypotheses that have to be worked on later.

From a brainstorming session add possible solutions to the needs your product may provide or be involved with. Again, these points may not to be taken as granted, but used as a tool to visualize the character.

User characters may be grouped in hierarchies.