There are total of three item types:
- Summary item
- Milestone item
- Task item
Summary items are defined as items that have sub tasks. Usually they start at the same point in time as the earliest starting child task. Respectively the summary task ends where the latest ending child task ends.
Milestone items are defined as items with identical start and end time. They are used as an indication for major events in the timeline e.g. finishing of a module in a project or getting to a certain level of completion or phase.
Common tasks are concrete tasks with defined start and end time.
The following table demonstrates the similarities and differences between the item types:
|Item \ Function||Movable||Resizable||Shows progress||Shows text|