Brainwriting, or the 635 method, was developed by Bernd Rohrbach. This method is based on the insight that proposed solutions are always particularly successful when other participants take them up and develop them further.

The rules are:

Take, for example, a group of 6 participants who write down 3 ideas in one column each on a prepared form on which the problem is described (3 ideas per participant and sheet). Then the sheet is passed to the neighbor on the left, who again writes down 3 ideas, e.g. associatively or logically systematically building on the ideas present on the sheet. This is repeated exactly 5 times. Afterwards an evaluation of the ideas takes place. The procedure for the evaluation can be the same as for brainstorming.