Bow-Tie diagrams are an excellent way to communicate a summary of the threats, potential consequences and safeguards (barriers) to plant personnel. They can also be used to highlight who is responsible for maintaining the safeguards. Watch for the upcoming CCPS book on Bow-Tie analysis, and/or read some excellent recent articles, such as:
Pitblado, Robin (DNV GL) et al. 2017. "Current State of Bow Tie Risk Assessment Method." In 13th Global Conference on Process Safety, San Antonio, TX: AICHE / CCPS. https://www.aiche.org/conferences/aiche-spring-meeting-and-global-congress-on-process-safety/2017/proceeding/paper/72b-current-state-bow-tie-risk-assessment-method.
Vaughen, Bruce, and Kenneth Bloch. 2016. "Use the Bow Tie Diagram to Help Reduce Process Safety Risks." Chemical Engineering Progress (December): 30–36. https://drive.google.com/open?id=0B9D_Y3EPgQlsWTVCYnlkWmQ1TUE.