Tasks and Issues represent some one-time task to be developed, problem to be solved or defect to be fixed. The difference between these entities are just in value of a "Type" field.

Tasks/Issues can be:

• specific for particular Process Instance and related to some specific step or not
• related to particular Object Record, not depending on Process ("Float" task/issue)

Tasks and Issues are displayed for users in these places:

• Task Manager Dashboard. Criteria for what issues are displayed are given in the Issue workflow table.
• "Tasks/Issues" tab of  Progress Component of the particular Process Instance

Tasks and Issues can be:

• Created (will get "To Do" status by default)
• Accepted (will get "In Progress" status)
• Restarted (will be reverted to "To Do" status)
• Put on hold (will get "On Hold" status)
• Completed (will get "Complete" status)
• Commented (have posts in proper feed)
• Edited
• Deleted
• Assigned (will have assignee changed)

Also Tasks and Issues can have contents attached (like on process steps) and related tasks/issues added.