[1] Effective task management requires overseeing all aspects of a task, including its status, priority, time, human and financial resource assignments, recurrence, dependencies, notifications, etc.
[3] A more up-to-date task-state machine diagram, which is applicable to the modern continuous delivery method, has also been published.
Various conceptual breakdowns exist, at a high level, these always include creative, functional, project, performance, and service activities.
Some are simple to-do lists, while others boast enterprise-wide task creation, visualization, and notification capabilities, among other features.
It does support simple individual projects to corporate task management activities.