Gantt Chart

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Charts are an opportunity, a story telling tool, a chance to make convincing argument through visualizing data

Why use Gantt charts?

Scheduling of tasks and displaying visual progress. Displays dependency relationship and schedule status

• Effective communication tool
• East to see and understand
• Considers tasks parallelism
• Add daily cost and cumulative costs to task planning
• Don’t clearly show the relationships between tasks
• Doesnt clearly the show impact of a task is delayed
• Gantt charts are sometimes complimentated with resource histogram¹
• Fully function excel gantt chart with completed status

Task Relationship Types aka Dependencies

FS (Finish to Start)

A task that cannot start before the completion of its preceding task

SS (Start to Start)

A Task that cannot start until its predecessor starts. Usually these will start together, however the dependent task may start later.

FF (Finish to Finish)

A task that is scheduled to finish at the same time as the preceding task.

PDM - Precedence diagram Method

is a tool for scheduling activities in a project plan

great to highlight dependencies

Forward project pass and backward project pass

CPM - Critical Path Method

where Early/late start/finish are same

if any activity schedule changes, entire project duration will change

Network diagrams

1. PDN - Precedence Diagram Method
2. CPM - Critical Path Method

• When to use which chart?

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Footnotes

1. gantt chart using SPARKLINES