...
For example, if a resource works 8 hour every day and you allocate that resource for 50% on a task, you are effectively saying - spend 4 hours on that task daily. On the other hand if you enter allocation in hours it indicates that the resource should work a total of those hours on a task.
Let's see a some examples so see how it works. For all these examples, assume that the 1 Man-day = 8 hours and all resources also work 8 hours per day.
A task requires 16 hours effort to finish and you assign a resource to work full time (i.e 8 hours per day). How long would it take to complete the task? If you said 2 days, you are right. Let's see if the equation matches with our expectation. In this case, effort = 16 hours and resource allocation is 1 (i.e 100%). So duration = 16 ÷ 1 = 16 hours or 2 days since each day is 8 hours.
...
To get the most out of scheduling, you need to understand and effectively use all three parts of the scheduling formula: W = D * U. You can control which of the scheduling formula parameter has the most influence over the task's scheduling.
There are many other factors that Celoxis takes into consideration while scheduling a task. Let us look at them.