DTM.8:1 - Problem frame

Use this when several proposed protective actions promise a similar improvement but act on different parts of a continuing or spreading practice.

Reducing exposure does not necessarily stop an already established activity. Reducing its consequences does not necessarily stop its further transmission. Restoring a useful function does not necessarily restore the old arrangement. These differences determine what the action can accomplish and what must accompany it.

Start with the function and affected party to be protected, then locate what each feasible action changes. The first result is a comparison of intervention targets, their direct effects, important remaining effects and implementation conditions.

For an already understood isolated hazard with no continuation or transmission question, use the relevant subject protection method. This pattern does not supply clinical, biological or other technical intervention procedures.