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Criterion
Paper illustration for 1-2-4-All.
Facilitation
1-2-4-All
Paper illustration for Open Space Technology.
Facilitation
Open Space Technology
Paper illustration for Round Robin Brainstorming
Innovation
Round Robin Brainstorming
Purposedifferent
When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster.When a complex topic does not yet have a fitting agenda, Open Space Technology hands topic ownership back to the participants. The format suits questions that only move forward when real interest determines the order.With unevenly distributed speaking time, the method brings every person into the contribution one after another. It prevents early voices from setting the direction while still producing a shared idea space. This makes participation plannable and the team's diversity visible.
Complexitydifferent
LowHighLow
Timedifferent
10-20 min0.5-2 Tage20-45 min
Participantsdifferent
4-100+20-500+4-10
Formatsame
WorkshopWorkshopWorkshop
Outputdifferent
Idea List, Shared Insights, Emergent ThemesSession Marketplace, Proceedings, Action TopicsIdea List, Cluster, Shortlist
Tags1 shared
FacilitationInclusionIdeation
FacilitationLarge groupAutonomy
BrainstormingIdeationFacilitationInclusionCreativity
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Often compared together

Methods with strong topical overlap with the current selection, not yet in the comparison.

A paper-based illustration representing Brainstorming with its core stages and visible working result.
Innovation
Brainstorming
Paper illustration of the Lotus Blossom working structure.
Innovation
Lotus Blossom
Paper illustration for Reverse Brainstorming
Innovation
Reverse Brainstorming
Paper illustration of Rolestorming with its method-specific working model.
Innovation
Rolestorming