Expertise

The techniques can be defined by the relative amount of expertise required.

Low

Backcasting
Reverse engineering
Windtunnelling
Horizon scanning
Issues trees
Review of abstracts
Seven questions
STEEP
Trend analysis

Medium

Plausibility matrix
Dialogue
The Fifth scenario
Narrative
Visioning
Driver analysis
Folksonomies

High 

Roadmaps
State of science reviews
Causal layered analysis
Systems maps
Gaming
Modelling and simulation
Scenarios
Delphi