Card Sorting
This method is really helpul subsequently to a brainstorming-type-of-method. After gathering lots of ideas some clustering is needed!
Category Emphathize
Brainwalking
A variation of the brainstorming method. In this case iteratively ideas are being developed individually by the participants.
Bird-in-Hand
The bird-in-hand principle is a method for developing ideas based on individual competencies and attributes of the people who are working together on a new project.