Abstract: Concepts and technologies are described herein for aggregating and presenting tasks. A task engine communicates with task systems that host tasks. The tasks are rendered in a user interface provided by the task engine. Changes to the tasks within the user interface can be written to the task systems and to copies of the tasks stored in a cache associated with the task engine. In some embodiments, the tasks are stored at the task systems and referenced by the user interface provided by the task engine. Thus, changes to the tasks can be written to the tasks stored at the task systems. User interfaces for viewing and editing the tasks are also provided.

Abstract: Technologies are described herein for providing a pan and zoom control in conjunction with a timeline for navigating project schedule data in a project management application. The project management application displays a pan and zoom control in conjunction with a project schedule timeline, with the pan and zoom control at a position and of a size relative to the timeline that reflects the temporal scope of project schedule data currently displayed. The pan and zoom control is configured to allow a user to move and resize the control along the timeline. Upon detecting movement or resizing of the pan and zoom control, the project management application will change the scope of the project schedule data displayed to match the time period represented by the new position and/or new size of the pan and zoom control in relation to the timeline.