What is the difference between a Gantt chart and a PERT chart?
Gantt charts are used for planning service activities, while PERT charts are used for planning production activities.
PERT charts show the critical path for meeting project goals, but Gantt charts do not.
Gantt charts focus more on efficiency, while PERT charts focus more on effectiveness.
PERT charts were formerly used more widely than Gantt charts, but the reverse is now true.
There actually is no difference between Gantt charts and PERT charts; they are both used to schedule activities.

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The Answer of What is the difference between a Gantt chart and a PERT chart?
Gantt charts are used for planning service activities, while PERT charts are used for planning production activities.
PERT charts show the critical path for meeting project goals, but Gantt charts do not.
Gantt charts focus more on efficiency, while PERT charts focus more on effectiveness.
PERT charts were formerly used more widely than Gantt charts, but the reverse is now true.
There actually is no difference between Gantt charts and PERT charts; they are both used to schedule activities.

What Is the Difference Between a Gantt Chart and a PERT