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CMA Intermediate · Operations Management and Strategic Management · Production Planning and Control

Which statement about Gantt charts in production control is correct?

Gantt charts are simple to read but show inter-job dependencies poorly. Network techniques like PERT and CPM handle three-time estimates and critical paths. Gantt charts do compare planned and actual progress against a time scale, which is their main strength.

  1. AThey show the probabilistic time estimates of each activity using three time values
  2. BThey clearly display the dependency network and critical path of a project
  3. CThey do not show a link between planned and actual output on a time scale
  4. DThey are simple to read but show inter-job dependencies poorlyCorrect

Explanation

Gantt charts are easy to prepare and read, but they do not clearly show dependencies between activities; PERT/CPM networks do that. Three-time estimates and critical path belong to PERT/CPM. Option C is wrong since Gantt charts do compare planned and actual progress.

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