Deliverables
Will participants produce or present something?
Deciding upfront what participants will actually produce changes how you design every activity before it.
A deliverable is something that comes out of the workshop: a decision, a prototype, a ranked list, a written plan, a commitment, a visual map. Not every workshop needs one, but if yours does, name it before you design the day. The clearer the output, the easier it is to work backward to the activities that will generate it.
Deliverables also set expectations for participants. People work differently when they know the session ends with something they have to stand behind. Make sure the deliverable is realistic for the time, the group, and the energy you will have at the point in the day when it is produced.