A well-designed Gantt chart should not be overloaded with information while at the same time it has to provide the planner with every crucial detail needed for decision-making. This balancing act can be mastered by applying an intelligently-designed interaction function. In this context, interaction does not only mean shifting an operation by drag & drop. It is meant in a sense that the Gantt diagram provides context-sensitive decision support information during the drag & drop interactions.
We call this “target-oriented interaction”.
How does this look like? In our series of Gantt chart tips this blog post introduces a Gantt application and focuses on the issue of an interaction in Gantt charts. It presents three planning & controlling scenarios, and specific interaction functions for each of these scenarios.