How can employees effectively communicate their frustrations to their supervisors or colleagues without causing conflict or tension in the workplace?

Employees can effectively communicate their frustrations by using "I" statements to express their feelings and avoid blaming others. They should choose an appropriate time and place to discuss their concerns privately with their supervisor or colleague. It is important to listen actively to the other person's perspective and work together to find a solution that addresses the issue. Setting clear boundaries and expectations can also help prevent future conflicts and promote a positive work environment.