I agree with all of the methods mentioned but I believe the task analysis and error use analysis methodology is the best way to address usability risks. The task analysis helps to identify and document the environment in which the task is conducted, the operators involved, the information required to perform the task, and the sources of information.After the task analysis, the error use analysis is conducted.The use errors are generated by analytically determining what can go wrong from the user’s end when interacting with the system. Based on the probability of occurrence of user errors and hazards, hazard estimates are computed. I believe this new process seems the most systematic and thorough, therefor the best for addressing usability risks.To add, I believe another thing that could help reduce the usability risk is if risk management was a life cycle process. This would allow feedback and complaints from the user to be taken into account and then risk management could fix the product accordingly, after it has already been on the market.