What is the difference between hazard analysis and Risk assessment?

JSA is a careful study for each step in a job, identifying the safety and health hazards at each step individually and classifying the severity and probability (H,M,L) for each hazard, identifying appropriate controls to eliminate or reduce each hazard while  risk assessment is a systematic examination of a task, job or process that you carry out at work for the purpose of; Identifying the significant hazards that are present (a hazard is something that has the potential to cause someone harm or ill health).

both are similar process to identify the hazards and recommendation of control measures in the task. the different is risk rating or evaluation(risk matrix) that only 

hazard analysis was adopted as the first principle of HACCP and it meant the process of collecting and evaluating information on hazards associated with the food under consideration to decide which hazards are significant and must be addressed in the HACCP plan. hazards are analyzed by categories: chemical, biological, and physical.

on the other hand, 

risk assesement is based on the current science for the hazards to be analyzed and includes hazard identification, hazard characterization, exposure assesement and risk characterization. in some cases the dose-response assesement may also be determined.