> For the complete documentation index, see [llms.txt](https://lern.sunbird.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lern.sunbird.org/use/developer-guide/discussion-forum/features-core-capabilities.md).
# Features/Core capabilities
The Discussions Forum allows users to participate in multiple discussions on the forum. Main features are:
* create multiple discussion categories and have many discussions under each category.
* post the questions, reply to posts, upvote or downvote posts
* create topics, forum, groups, users and manage them
* Tag categories and update privileges
* The user will be able to edit and delete the topic and post
* If the user once disables and enables the Discussion Forum the old topics and posts should not be there.
* Once the user clicks the forum icon he would be able to see 3 tabs,
* Categories
* Tags
* My Discussion
### Hierarchy of discussions
The below diagram explains the category & topics created for a Course & Batch. The same can be used for any other types like Group, Quiz, etc.
Category → It is like a container( can hold Sub-containers, Topics)
Topic → This will be always added to the container(Category, Sub-Category). This is a discussion topic/thread created within the category. Users can participate in the topic/discussion.
Post → This will be always added to the Topic. This is the user response/reply given for the discussion topic/thread. The user is participating in the topic by posting.
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