Data processing system

A data processing system comprising:

• a display device;
• a processing device connected to the display device and one or more user input devices connected to the processing device, the display device configured to:
• display a Gantt chart comprising a plurality of tasks and a plurality of constraints, each constraint connecting two tasks;
• highlight a task in the Gantt chart;
• in response to receiving a forward user input, highlight a constraint exiting a previously highlighted task in the Gantt chart, or in response to receiving a back user input, highlighting a constraint entering the previously highlighted task in the Gantt chart;
• and
• in response to receiving a down user input that follows the forward user input, highlighting a next lower displayed constraint connecting to the previously highlighted task in the Gantt chart, or in response to receiving an up user input that follows the forward user input, highlighting a next higher displayed constraint connecting to the previously highlighted task in the Gantt chart.

A computer program product for navigating a Gantt chart displayed by a display device, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code being executable by a processing device to:

• highlight a task in the Gantt chart, the Gantt chart comprising a plurality of tasks and a plurality of constraints, each constraint connecting two tasks;
• in response to receiving a forward user input, highlight a constraint exiting the previously highlighted task in the Gantt chart, or in response to receiving a back user input, highlight a constraint entering the previously highlighted task in the Gantt chart;
• and
• in response to receiving a down user input that follows the forward user input, highlight a next lower displayed constraint connecting to the previously highlighted task in the Gantt chart, or in response to receiving an up user input that follows the forward user input, highlight a next higher displayed constraint connecting to the previously highlighted task in the Gantt chart.