MC-Questions with empty solution = correct solution

1 Initial Problem

ILIAS offers the "strange" possibility to add a "Multiple-Choice Question (Multiple answers) ", where a empty solution is the correct solution.

We really had a institution using exactly this scenario.
But when users in 5.3 send "Empty" solution as the correct solution, then ILIAS writes 0 points as result.

We have to find a solution for this.

There is already a thread in the SIG-EA-forum:
https://www.ilias.de/docu/goto_docu_frm_1921_4942.html

2 Conceptual Summary

{Please add a brief summary on how you would like the problem to be solved.}

3 User Interface Modifications

3.1 List of Affected Views

{Please list all views (screens) of ILIAS that should be modified, newly introduced or removed.}

3.2 User Interface Details

{For each of these views please list all user interface elements that should be modified, added or removed. Please provide the textual appearance of the UI elements and their interactive behaviour.}

3.3 New User Interface Concepts

{If the proposal introduces any completely new user interface elements, you might consult UI Kitchen Sink in order to find the necessary information to propose new UI-Concepts. Note that any maintainer might gladly assist you with this.}

4 Technical Information

{The maintainer has to provide necessary technical information, e.g. dependencies on other ILIAS components, necessary modifications in general services/architecture, potential security or performance issues.}

5 Contact

• Author of the Request: {Please add your name.}
• Maintainer: {Please add your name before applying for an initial workshop or a Jour Fixe meeting.}
• Implementation of the feature is done by: {The maintainer must add the name of the implementing developer.}

6 Funding

If you are interest in funding this feature, please add your name and institution to this list.

• …

7 Discussion

14 June, 2018. This is actually one of the bugs that our automated tests in Regensburg fail against. As long as ILIAS does not disallow the creation of MC questions with a non-zero score for "all unchecked", it must compute the correct non-zero score.

Kergomard, Stephan [skergomard], 2022 Mar 9: We close this as part of the cleaning up effort undertaken in the Splitting-Up Test & Assessment Workinggroup.

8 Implementation

{The maintainer has to give a description of the final implementation and add screenshots if possible.}

Test Cases

Test cases completed at {date} by {user}

• {Test case number linked to Testrail} : {test case title}

Approval

Approved at {date} by {user}.