How to Customize a Task’s Duration

When you create an automatically scheduled task, ConceptDraw PROJECT assigns it duration of one day by default. You need modify that duration to reflect the real amount of time that the task requires. The actual duration of the task depends on the working calendar of the particular resource assigned to this task.

Some people are more comfortable working with duration, while others focus on man-hours. The last changed parameter becomes primary and affects the other one.

Best practices for resource assignment:

1. Set the calendar for your resources’ working days.
2. Assign resources to tasks. The man-hour field will equal the assigned task’s duration (in days) multiplied by the  hours in a resource’s default working day.
3. Edit the man-hour field manually. Duration will change automatically (Duration = Man-Hour/Hours-per-day).

Result: Now, when you change a task’s duration, the man-hour field will be changed automatically.