ABSTRACT
Yet, these models are not fully exploitable by OHS practitioners during the design of OHS interventions because they do not guide practitioners into a systematic and structured fashion in the identification of the mechanisms and the contextual factors relevant for the particular OHS intervention. The models limit themselves to provide a generic definition of mechanisms and contextual factors, assuming that practitioners will be autonomously able to identify specific mechanisms and contextual factors on the basis of their skills and previous experience. The problem is that practitioners could be unable to properly identify specific mechanisms and contextual factors, since the practitioners’ decision-making processes can at best be described as governed by bounded ration-
1 INTRODUCTION
A multitude of Occupational Health and Safety (OHS) interventions have been proposed by researchers and practitioners. Even though the interventions as such have proven to be effective-normally under controlled conditionsimplementation in practice is often difficult and interventions may therefore not work as expected. Therefore literature points out that the effects of interventions rarely are as strong as expected (see e.g. Kennedy et al., 2010). A number of researchers have tried to solve this problem by suggesting various models for the design of interventions which should secure a stronger implementation. Most of these models understand interventions as projects and they have adapted phase models from the industrial management literature (see e.g. Hare and Cameron, 2012).
