Working with milestones

A milestone is a task with a duration of zero. Milestones are used to mark important events such as meetings, delivery dates and deadlines. There are two types of milestone: start milestones and finish milestones. Start milestones and finish milestones are treated differently when you reschedule a project if they fall at the end of a period of working time: finish milestones are positioned at the end of the current period of working time, whereas start milestones are positioned at the start of the next period of working time. For example, if a milestone falls at the end of a working day, rescheduling the project would result in a finish milestone being positioned at 17:30 that day, and a start milestone being positioned at 09:00 the following morning.

This is illustrated below, where a task that finishes at the end of a working day has two predecessor milestones. The start milestone (SM) is positioned at the start of the next working day, and the finish milestone (FM) is positioned at the end of the current working day:

A start milestone and a finish milestone

Milestone appearances define the way which milestones are displayed in the bar chart. You can set up any number of milestone appearances and apply them to individual milestones - whether the milestones are tasks, resource allocations or cost allocations. Examples of different milestone appearances are: diamond; left-pointing triangle; left-pointing arrow; right-pointing triangle; right-pointing arrow; cross; down-pointing arrow.

You can specify default milestone appearances to apply to start milestones and finish milestones as they are created, and you can apply different milestone appearances to individual milestones once they have been created. You can also specify default milestone appearances for individual consumable resources, permanent resources and cost centres, to be applied to zero duration resource allocations and point spend cost allocations. You may want to apply a different milestone appearance to each resource or cost centre to help differentiate between their allocations.

Related Topics:

Creating recurring tasks or milestones

Specifying where new tasks inherit their attributes from

Assigning objects from the project view

Setting default items in the project view

Specifying which information is displayed in the project view