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Tools such as Gantt charts can be used to manage the schedule. Challenges and issues may arise that must be overcome. External risks may cause a change in the scope of a project.

1. What are some of the risks that must be considered in preparing a schedule? What external forces affect a project? Why do projects tend to go over the planned schedule? 
2. Continuing with the personal project you started in Week 2. What are some external events that could affect this project? What factors and risks may affect the schedule? What tools could you use to plan and/or change the schedule