A step taken so that a reasonable person could assume that a business took appropriate safety measures is called

Risk assessment

Explanation: This is known as risk assessment, the overall process of identifying all the risks to and from any activity and assessing the potential impact of each risk.  This is achieved by assessing the likelihood that each risk will occur, and then combining the result according to an agreed rule to give a single measure of potential impact.

To have a thought about what aspect of a business, might cause harm and decide whether you are taking reasonable steps to prevent that harm is known as a risk assessment.