GGG is currently undertaking a process of intuitive forecasting.

GGG is currently undertaking a process of intuitive forecasting. A team of ten people has been selected from all levels of management and from a range of functional departments, to take part in the process. An initial single question of 'How do we improve future customer satisfaction levels for GGG?' has been posed and all members of the team have been asked to present a suggestion. No one is allowed to criticise another person's ideas. This process should give GGG a forum for the expression and discussion of a wide range of ideas.

Which of the following intuitive forecasting techniques is GGG undertaking?