The main objective of WP2 was to analyse the state-of-the-art in terms of radicalisation factors leading to terrorism and violent extremism, the projects and programmes used to tackle radicalisation leading to terrorism and violent extremism, and the methods employed to evaluate their effectiveness. From this analysis, a database was produced indicating which type of evaluation methodology and metric is appropriate for particular types of programmes. This database will provide input for the IMPACT evaluation toolkit to be developed in WP3 and for the user manual to be developed in WP4.