![]() ![]() This situation is common when a resource is split between multiple tasks at one time. Assigned Amount and Available Units Assigning fewer units of a resource to a task causes the duration to be longer than the effort, because less of the resource’s time and energy is being spent on that task. Efficiency of Assigned Resources Assigning less-efficient resources to a task causes the duration to be longer than the effort, because the resource takes more time to achieve the same amount of effort. ![]() Number of Assigned Resources Assigning more resources to a task generally causes the task to take less time, because the required effort gets completed sooner. The most common variables are described below adjusting them can help bring a project in line with the desired timeline for completion. Multiple factors influence both duration and effort. If both values are fixed, then assigning resources changes the assigned percentage. Regardless of which value is calculated, you can always edit either value manually. When you assign or unassign staff and equipment resources, the value that isn’t fixed re-calculates its value the other field stays the same. The duration and the effort of a task can change depending on the resources you assign.Įach task has a setting in the Resource Allocation section of the Task inspector which controls whether to keep the duration fixed, the effort fixed, or both. Note that Material resources don’t contribute to effort, only Staff and Equipment resources do. A task with a duration of 4 hours, with 2 resources assigned at 100%, has an effort value of 8 hours. Also note that the resources assigned to a task may have different working hours than the project as a whole, and thus the displayed duration of a task may not match up exactly with the amount of effort it takes.Įffort is the total amount of working time put into a task by all assigned resources. Note that non-working times don’t count if a task starts one afternoon and doesn’t complete until the next morning, or spans a lunch break, only the working hours are counted. If the task begins at 8:00 and ends at 12:00, that’s a duration of 4 hours. Position in the task outline tasks that are higher in the outline are scheduled earlier.ĭuration and effort are two key concepts intimately involved with the process of scheduling tasks and leveling your project for optimal efficiency.ĭuration is how long a task takes in actual working hours in the schedule. Task Priority, as set in the Priority column of the task outline. Requirements to end by a certain time, such as locked end dates, constraints, or being a prerequisite to a task with such a requirement. In judging which task to put first, the following criteria matter, in this order: Tasks moved back by resource leveling are scheduled by resource availability.ĭuring leveling, OmniPlan has to make an educated decision about which task should get access to a resource first, and which tasks should be pushed back by a resource dependency. When you level the project (or whenever a change is made, if Project ▸ Automatically Level Resources is selected), OmniPlan rearranges tasks which have resources assigned, to make sure no resource is being used at more than 100% of its availability. Tasks can also be scheduled as late as possible or locked (with the lock icons above the Start and End dates in the Schedule section of the Task inspector, or by holding Command and clicking either end of the task’s bar in the Gantt chart) so they are not affected by leveling. Resource availability is not taken into consideration, so resources may end up overutilized (this is why leveling is an important additional step). This means the task is placed at the very earliest time possible, taking into consideration start and end constraints, and dependencies on other tasks. ![]() The Task inspector’s Scheduling method indicates how OmniPlan should determine when a task is to occur in the project.īy default and prior to leveling, new tasks are scheduled as early as constraints allow. ![]()
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