Question

How is issue hierarchy provided by Structure different from the standard sub-tasks?

Answer

Sub-tasks have several major limitations:

• Sub-tasks are only a one-level hierarchy
• Sub-tasks are separate issue types
• Sub-tasks always inherit project and security level from their parent task

None of these limitations are present in Structure. At the same time, Structure provides all the features that sub-tasks have, and more. You can even use existing sub-tasks to build your structure's hierarchy, using the Sub-tasks Extender.