The dependent task can be completed at any time after the task that it depends on begins. The SF link type does not require that the dependent task be completed concurrent with the beginning of the task on which it depends.
For example, the roof trusses for your construction project are built off-site. Two of the tasks in your project are "Truss delivery" and "Assemble roof. If a task has any actuals applied, such as an actual start date or a percentage of work completed, the task can't be rescheduled any earlier than the date when the task actually began. If no progress is entered and the task has an inflexible constraint, the constraint can take precedence over task dependencies. For example, if a task has a Start No Earlier Than SNET constraint set to July 1, the task is tied to that date and won't be rescheduled to an earlier date, even if its predecessor finishes on June 28 and the successor task could start earlier than July 1.
In Project, if you create a task by dragging the pointer on the chart portion of a Gantt Chart view, a Start No Earlier Than SNET constraint is set on the task for projects that are scheduled from the start date.
To reset the task constraint to be more flexible, select the task, choose Information , and then select the Advanced tab. Project then schedules the task's start date according to the task dependency. In the Scheduling options section, clear the Tasks will always honor their constraint dates check box.
About linking tasks. Link tasks by using the Gantt Chart view. Link tasks by using the Network Diagram view. Link tasks by using the Calendar view. Project provides additional types of task links so you can model your project realistically. For example, if you have two tasks, "Dig foundation" and "Pour concrete," the "Pour concrete" task cannot begin until the "Dig foundation" task is complete. The dependent task can begin anytime after the task that it depends on begins.
The SS link type does not require that both tasks begin simultaneously. The dependent task can be completed anytime after the task that it depends on is completed. The FF link type does not require that both tasks be completed simultaneously. The dependent task can be completed anytime after the task that it depends on begins. For example, the roof trusses for your construction project are built offsite.
When inserting a task among linked tasks, you can have a new task linked automatically or not link it at all. To link the new task, select the task that you want the new task to precede, and then choose New Task on the Insert menu.
Note: If this doesn't work, on the Tools menu, choose Options , and then select the Schedule tab. Make sure that the Autolink inserted or moved tasks check box is selected. To add the new task without linking it, select the task with which the new task will occur concurrently, and then drag to create the new task in a blank portion of the Network Diagram. In the Task Name field, select two or more tasks you want to link, in the order you want to link them.
Choose Link Tasks. Project creates a finish-to-start task link by default. You can change this task link to start-to-start, finish-to-finish, or start-to-finish.
By default, when you insert a task among linked tasks, the new task is automatically linked with the surrounding tasks. You can easily turn this option off, so that inserting a new task does not automatically link it with the surrounding tasks.
If autolinking is turned off, you can easily turn it back on. On the Tools menu, choose Options , and then select the Schedule tab. To turn autolinking off, clear the Autolink inserted or moved tasks check box. Choose Task Information. To select multiple tasks that are not listed consecutively, hold down CTRL and click each task.
To select tasks that are listed consecutively, click the first task, hold down SHIFT, and then click the last task that you want to select in the list. Choose Unlink Tasks. If you set Calculation mode for your project to Manual , the successor task will not move. To reset the task constraint to be more flexible, select the task, choose Task Information , and then select the Advanced tab.
To make task dependencies override inflexible constraints for all tasks, on the Tools menu, choose Options , and then select the Schedule tab. To set calculations to automatic, on the Tools menu, choose Options , and then select the Calculation tab. What do you want to do? Insert a task between linked tasks You can set up Project so that when you insert a new task between linked tasks, the new task is automatically linked to the surrounding tasks.
Select the Autolink inserted or moved tasks check box. Insert the new task. Point to the center of the predecessor task box. Drag the line to the successor task box.
Fast tracking is the most common method used for shortening a project because it appears to be less expensive than the only alternative, crashing.
Crashing requires applying additional resources to critical path tasks to shorten individual tasks. Unfortunately, risk increases when tasks are done at the same time.
You can begin by selecting the type of dependency, or start with the default link and change the dependency type later. In the long run, it may be less work to link groups of tasks finish-to-start and modify the exceptions rather than establish all task dependencies individually. For those unfamiliar with these different task dependencies, our last blog post covered this very subject.
Figure 5 Link path linking by mouse. By default, Microsoft Project sets a Finish-to-Start task dependency regardless of which method you use.
It seems like a lot of work for what may be very few tasks but if you really want to set up a sequence of dependencies maybe all of which have the same Lag value you could try doing it through a custom field. Let's suppose that for a string of tasks you want to end up with dependencies like:. If you have other dependencies for the same tasks that you want to preserve, you may need to make sure the dependency with the lag is the last in the list.
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