Task Deadline is the final desired point in a task’s time length that this task must be completed by. It is an end time limit for the task to reach its goals and produce its outcomes. Deadline identifies planned completion date but may not equal actual completion date.
Deadline of a task is usually placed on the task’s schedule to identify desired date and time when the task should be completed. Ideally, deadline equals actual completion date. If the task reaches completion by its deadline, then this task appears to be effective. Otherwise the task suffers from delays and breaks that extend its duration. Often effective task duration is calculated as the time period between the start time and deadline.
Task duration estimation involves a suit of techniques and methods that help determine task time-frames including, start dates, completion dates, milestones and deadlines. For example, Backward Estimation method considers target dates or deadlines in determining start time and duration. Bottom-Up Analysis entails using deadlines of smaller activities and sub-tasks in determining durations of broader tasks.