Today I will show you what happens when you put work in hours to the Tasks, and then assign Resources to the Task, using MS PROJECT 2016. Firs II ‘m going to create new Project:
As you can see, I have modified the Gantt Chart View in a way that I added Type, and Work fields. For all three Tasks I know that 40 hours are needed to complete this work.
I have three Resources in My Project:
Now I will switch to Task Usage View:
I have modified this View too, and I added Resource Names field. Now I am going to assign Resources to each Task:
As you can see, now the Magic Formula takes a place: Work = Duration * Units, e.g. Duration = Work / Units.
Fixed Units Task Type, and Fixed Work Task Type has Duration 5 days, because Duration = 40 / 100% (8 hours per day) = 5 days. But, Fixed Duration remains 1 day, because it is Fixed, and Mary should work 40 hours in one day which is impossible. So, when you have Fixed Duration Task Type DO NOT put hours in Task, but in Resource assignment. Why? Because when you have Fixed Duration, you should tell MS PROJECT how many hours in that duration should each Resource work, and in a Task put Duration instead of work. Then MS PROJECT knows Duration for that Task you want. It doesn’t make a sense to have Fixed Duration Task Type, and do not put that Duration in Task, does it?