Difference Between Gantt Chart and PERT Chart

Gantt Chart vs PERT Chart

The Key Difference Between Gantt Chart and PERT Chart is that Gantt chart is a horizontal bar chart that displays tasks as bars along a timeline whereas PERT chart is a diagram that represents a project’s tasks and dependencies.

Comparison Chart

  • Gantt Chart and PERT Chart both have different features and functionalities, here is a comparison of some key features between them.
Gantt Chart PERT Chart
Represented with horizontal Bar Chart Represented with Flowchart/Network Diagram
Gantt Chart used for Small projects. PERT Chart used For Large and Complex Projects
Provides a high-level view of the project Provides a more detailed view of the project’s tasks and their dependencies
Gantt charts focus on the time required to complete a task. PERT chart focuses on intertask relationships.
Gantt chart is simpler and more straightforward PERT chart could be sometimes confusing and complex

Gantt Chart Advantages

  • Visual representation
  • Improved project planning
  • Resource allocation
  • Track progress
  • Prioritization

Gantt Chart Disadvantages

  • Time-consuming
  • Limited flexibility
  • Oversimplification
  • Overemphasis on timing
  • Misinterpretation

PERT (Program Evaluation and Review Technique) Chart Advantages

  • Better estimation
  • Improved project planning
  • Track progress
  • Risk management
  • Collaboration

PERT (Program Evaluation and Review Technique) Chart Disadvantages

  • Complex
  • Time-consuming
  • Limited flexibility
  • Technical expertise
  • Oversimplification

More Differences