People engaged in project management must understand what risks are.

Project risk: first, the risk is related to people's purposeful activities. Second, the risk is related to future activities and events. Third, if the consequences of the activities or projects are not ideal, or even fail, people always want to think: can we change the previous behavior or route and do a good job in the future activities or projects?In addition, when the objective environment or people's thoughts, policies or action lines change, the results of activities or projects will also change.