Artemis enables students, tutors, and instructors to actively participate with its communication capabilities. Various communication features allow students to engage with peers and ask all kinds of questions whereas moderators (e.g., instructors and tutors) can provide general course information and answer content-related questions. Communication can be made in different contexts, namely for lectures, exercises, or courses. Course participants can also message each other to communicate in private. Below, you can find more information on specific features and how to use them.

Enabling Communication

Artemis courses will by default enable all the communication features. In case you do not want to provide users with these features, you can disable them on course creation by unchecking the respective checkbox (Enable communication features) - it can also be edited afterwards.


Lecture Posts

Posts, that are specifically related to a certain lecture.

These posts have to be created on the detail page of the lecture they belong to.

Exemplary lecture detail page with posts:


Exercise Posts

Posts, that are specifically related to a certain exercise.

These posts have to be created on the detail page of the exercise they belong to.

Exemplary exercise detail page with posts:


Course-wide Posts & Course Communication Overview

Besides lecture or exercise related questions, Artemis offers a third post type: posts with course-wide topics, such as Organization or Tech Support. These posts can only be created on the course communication overview, which is shown in the screenshot below.

The Communication space of an Artemis course serves as overview for all posts in a course. Hence, course-wide posts as well as exercise posts and lecture posts are listed. Here, users can easily query, sort, and filter existing posts.


Private Communication

Users of a course can communicate in private via the Messages page. (see image below) The page consists of a collapsible Conversation sidebar on the left, where users can search for other participants of the current course and start a conversation with them.

If the recipient is browsing another conversation when they receive a new message, an icon with an unread-messages counter is displayed in their conversation sidebar, next to the affiliated conversation that the new message was sent to. This way, users become aware of the new message within that discussion.

The authorities of tutors and instructors are more restricted in the Messages Page compared to the Course Communication Overview. Messages of a conversation are exclusive to its participants and are only editable or deletable by their respective author.

Messages do not consist of titles. Users can continue a discussion around a specific message topic by clicking the messages’ “Reply in thread” button, which opens the Thread sidebar (see image below). The Thread sidebar is a collapsible sidebar located on the right-hand side of the Messages Page when displayed.


This video shows how link previews work in Artemis:

If the message content contains links, a preview of the link will be shown under the message. This way, users will have a good understanding of what that link is about. If they prefer not to have a preview, they can hover over the preview and click the appearing X button. The preview will be removed.


If the message contains more than one link, the preview will not have a preview image of the link to have more compact previews for multiple links.


Features for Users

This section captures the most important features that are offered to any Artemis user.

Search, Filter, and Sort Posts

On the course communication overview, a user can query all existing posts according to the following criteria and their possible combinations:

  • Text-based search
    • Post ID (prepend hashtag # to post identifier, i.e. #396)

    • Contents of Post Title

    • Contents of Post Context

    • Post Tag

  • Context filters
    • Lecture

    • Exercise

    • Course-wide topic
      • Announcement

      • Organization

      • Random

      • Tech Support

  • Other post characteristics
    • Unresolved Posts

    • Own (posts current user has authored)

    • Reacted (posts current user has reacted or replied to)

  • Sorting Configurations (ASC/DESC)
    • Creation Date

    • Number of Votes

    • Number of Answers

A simplified version of this feature is available on the exercise and lecture details page as well.

Verify User Authority

To build trust between users utilizing the system’s communication features, we prepend an icon to the author’s name in the headers of posts and their replies. The icon we introduce differs according to the role of the author within the course and reveals their highest authoritative role. Via tooltips that are shown as users hover over these icons (see images below), the system displays a brief explanation of that specific role. This way, the system builds trust in the author, and readers can tangibly confirm the origin of the shared information.

Instructor Authority


Tutor Authority


Student Authority


React on Posts

To foster interaction between users, we integrate the well-known emoji reaction bar. Each user in the course can react on any post by making use of the emoji selection button. The + emoji serves as the up-voting reaction, which influences the display order of posts.

Reference Course Entities

Users can reference to different course entities within their posts, such as other posts, course exercises, course lectures, and attachments of these lectures. All references are then prepended with icons which are unique to the reference’s type, to help users distinguish them conveniently. In the image below, we see all possible types of references that can be created in an Artemis post. post-with-references

Reference Posts

If users want to refer to other posts, they can integrate a simple pattern including the hashtag (#) combined with the post identifier. A post’s identifier is appended to the post title (such as seen in the screenshots above).

When clicking a post reference used in a post’s text, the user is navigated to the referenced post.

Reference Course Exercises

Users can refer to exercises of the current course, via the dropdown menu Exercise available on the posting markdown editor (see image above). The following types of exercises are prepended unique icons to help distinguish the type of the exercise being referenced.

  • Text Exercise

  • Quiz Exercise

  • Modeling Exercise

  • File Upload Exercise

  • Programming Exercise

Reference Course Lectures

Users can refer to lectures of the current course, via the dropdown menu Lecture available on the posting markdown editor (see image above).

Reference Lecture Attachments

Users can refer to lectures of the current course, via the dropdown menu Lecture available on the posting markdown editor (see image above). Here, lecture attachments can be found in a nested structure.

Reference Lecture Attachment Units

Users can refer to lecture attachment units of the current course, via the dropdown menu Lecture available on the posting markdown editor, see image below. Here, lecture attachment units can be found when users hover over the specific lecture.

Reference Lecture Unit Slides

Users can refer to lecture unit slides of the current course, via the dropdown menu Lecture. Here, slides can be found when users hover over a specific unit, see image below.


After the user references a single slide they can see it as an image included in the message. Additionally, they can preview the slide in order to easily read the content by clicking the image.



Prevent Post Duplication

In order to prevent duplicated questions from being posted, we integrate a duplication check that runs during post creation. We strongly recommend users that create a post, to check the automatically provided list of similar posts to find out whether the question in mind has already been asked and resolved in the best case.

Mark Your Post As Resolved

Marking a post as resolved will indicate to other users that the posted question is resolved and does not need any further input. This can be done by clicking the check mark next to the answer post. (see image below) Note, that only the author of the post as well as a moderator can perform this action. This is helpful for moderators to identify open questions, e.g., by applying the according filter in the course overview. It also highlights the correct answer for other students that have a similar problem and search for a suitable solution.


Tag Your Post

When creating a post, users can choose to add arbitrary tags. Tagging a post will further narrow down the post purpose or content in precise and descriptive keywords, that might follow a course-specific taxonomy.

Features for Moderators

The following features are only available for moderators, not for students.

Move Posts

Tutors can change the context (lecture, exercise, course-wide topic) in the edit mode of the post. By changing the context, for example from a certain exercise to a course-wide topic, the post is automatically moved. In the example at hand, the post will not be shown on the according exercise page anymore, but rather only in the course-wide communication overview, associated with that certain course-wide topic.

Pin Posts

By clicking the pushpin icon next to the reaction button of a post, a moderator can pin the post. As a consequence, the post is displayed at the top of any post list to receive higher attention.

Archive Posts

As a complement to pinning, i.e., highlighting posts, a moderator can archive posts and thereby put them at the bottom of a post list. This can be achieved by clicking the folder icon next to the reaction button. Moderators should be aware that this reduces the visibility of the post.

Features for Instructors

The following feature is only available for instructors that act as moderators.

Post Announcements

Instructors can create course-wide posts that serve as Announcements. They target every course participant and have higher relevance than normal posts. Announcements can be created in the course communication overview by selecting the topic Announcement. As soon as the announcement is created, all participants, that did not actively refrain from being notified, will receive an email containing the announcement’s content. Additionally, announcements visually differ from normal posts and are always displayed on top of the communication overview.