Differentiate between risk assessment and incident investigation?

Risk assessment is conducted before an incident has occurred with the aim of avoiding any incident in the first place while incident investigation is done after an accident has occurred to determine its causes and avoid its repetition in the future.

Risk Assessment: a systematic process of evaluating the potential risks that may be involved in a projected activity or undertaking.

Incident investigation: it is procative measure taken after accident.

Risk assessment is a procative measure taken befor starte any work.

Incident investigation is a reactive measure taken after an acident.

Risk assessment is a process used in safety mangement to identify, measure and determine what hazards can be anticipated during each stage of any work or project to be undertaken. This is a proactive reaction to enhance safety. In contrast, incident investigation is a reactive action to determine the underlying and root causes to the incident or accident. The purpose of an incident investigation is also to formulate and implement preventive measure/s to avoid recurrence.  

Risk assessment is a procative measure taken to avoid any work related HSE hazard

An incident investigation is a reactive measure taken after an acident to avoid similar incidents in future