“…The first set of parameters were identified from this set. In addition, existing literature was reviewed for factors influencing severity and controllability (Baker et al, 1974;Ellims and Monkhouse, 2012;Green, 2000;Lortie and Rizzo, 1998;Monkhouse et al, 2015;Summala, 2000;Verma and Goertz, 2010). The parametrization of the HARA components should help meet the R1, R2 and R3 reliability criteria defined by (Aven and Heide, 2009) by objectivising the decision making process involved in HARA ratings.…”