Offers a simpler way to create triggers (schedules).

Provides various methods for creating triggers with schedules that meet particular descriptions, as opposed to directly instantiating triggers of a specific type (e.g., SimpleTrigger, CronTrigger) and then invoking various setter methods to configure them.

Offers a simple way to create Dates (for start/end dates).

Offers helpers for analyzing triggers (for example, to calculate future fire times).