There is no heirarchy in JIRA other than parrent issue and sub task in JIRA. If you want structure, you migth want to consider Strucurte Add on (https://marketplace.atlassian.com/plugins/com.almworks.jira.structure).
"parent" and "child" are only names. You could create such custom link type on JIRA in order to represent a parent-child relationship between Stories and Tasks...
An story is parent of a task and a task is child of an Story.
However, the parent-child relationship is also used by JIRA for sub-tasks:
An issue is parent of a sub-task and a sub-task is child of an issue.
So, to avoid confusion, you could create a new link type: "owns-belongs to" (for instance) to represent the same relationship:
An Story owns tasks and tasks belonging to stories.
O whatever else link type you need.
One advantage of regular links regarding Agile is that they bring a rich expressiveness. For example: Before to start an sprint (Sp1) you could discover that a task (A) depends from other task (B) which does not belong to the same sprint. In this case, you might want to create a link "depends" between the task A ans the task B.
In this simple case, when you are going to plan the task A you need to be able to see that it depends on the task B in order to include the task B in the same sprint or delay the task A until B is resolved. This is a simple and common case where the simply parent-child relationship is not enough.
Many, many companies are using a lot of different issue types (like bugs, test cases, etc) and a lot of link types (the bug X affects to the task Y) to work with Agile beyond Epics, Stories, Task, Subtasks and parent-child which are an small set of elements you can use on Agile, but really there is an endless lot of possibilities to bring Agile benfits to JIRA and JIRA benefits to Agile. And regular links are one of such benefits that you can take advantage from Agile as it is built on top of JIRA.
I agree Links Hierarchy might show too much data for large Epics, despite that all the data shown by Links Hierarchy are meaningful and helpful. Even more because HIERARCHIES are not supported in Agile as backlogs are PLAIN lists. Just for that Links Hierarchy is much appreciated by Agile teams. I disagree your sentence: "It gives no visual hint, just a bunch of reference" is just like I say: "Links are useless because they are simple arrows between issues". I evaluated (and discarded) supporting such "hints" on Links Hierarchy just due the nature of links. Links are concepts which administrators can configure freely and their meaning would depend on each company's context. Links Hierarchy brings a lot of value for Agile. For instance: you might want to select an Epic as the root or the hierarchy. Then collapse (hide) all the Stories that you are not interested in. Then filter by resolved issues to show only pending tasks. Then filter by Sprint status to hide closed sprints and then inspect visually the resulting hierarchy. Even perform some hierarchy clean up by unchecking undesired link and issue types still present until you get the Agile hierarchy you want to inspect. Of course, it could take you some time and effort as neither red lights nor alarms are fired. but for sure, there will be there a lot of useful information that you could take advantage from, for sure.
I didn't write about the Links Hierarchy plugin, but about JIRA + Agile missing some basic hiearchy. I don't want to refer to MS Project, but hey, the example is there. (not to mention there IS some kind of hierarchy in Agile, because in Scrum view the Epics are grouped on the left side as a list, and you can change tasks lists based on Epics. But nothing is available for Stories, not to mention Sub-Tasks). Imagine if you had the Agile view as the standard Jira Issue view, Epics, Stories, Tasks, sub-tasks, bugs all in the same list. I don't think you would like it. Of course placing tasks under their respective stories in the backlog would need some auto-ordering mechanism (which is non-existent yet), but believe me, there are people in an organization that don't care about task priority (the only thing a task's place in a list represents now) but task grouping. And Links Hierarchy does not work with the Cloud install :-)
Actually we need this feature too. We divide Epics for several small Epics, because there is no easy way to link new issue/dev-task to Story during creation.
Doesn anyone find solution, to add such custom field on issue creation page?
P.S. Use link button with selecting dependence to Story, it's not easy way.
You can't technically add a Task to a Story.
However, what you can do is convert a Task to a Sub-Task and attach that to a Story (or anything else for that matter). Doing this will now make those tasks appear in the Story's details with a progress bar indicating the progress.
I hope this solves what you're looking to achieve. I'm unsure how this affects the data tracking though.
We are trying to group cards on our Kanban board based on Epic Links, but subtasks cannot have an Epic Link, which then renders the use of subtasks almost worthless. It helps tracking subtasks for a given Story, but that still doesn't allow us to group everything based on an Epic.
If subtasks could have an Epic Link, then this probably wouldn't be a big deal.
I think the idea is that sub-tasks can't be associated with an Epic because they should only be part of its parent.
An Epic shouldn't care about the details of a story. Only the high-level Story, Task, Bug, or whatever type that can have sub-tasks.
Sadly, by default, JIRA doesn't accumulate the story points mentioned in sub-tasks to its parent. You'll have to maintain the total amount in the parent type manually.
In short: no.
This is not an "answer" just a how-to on creating a Sub-Task. This article has no information on what a Sub-Task is, what its role is in a project, etc. And Sub-Tasks are not visible in Scrum board.
Did you read the original question and comments about the "problem" here?
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