Usability
Interface 
User-friendliness/complexity of the tool´s interface
Straightforward, intuitive.
Time efficiency Time needed for mastering the „how-to“ of the tool and a production of a task
Medium.
Interface language(s) The number of languages in which the tool is currently available/adaptable to
French.
Respect for privacy Does the tool require registration? Who can see my data? Can I remain anonymous?
High. Réseau Canopé, which operates QuiZinière, collects personal data and cookies for operational purposes. Educators are required to create an account providing some data that is then gathered, but in the case of pupils, no personal data is collected. QuiZinière mentions protecting user data but lacks specific details regarding the security measures in place. It complies with EU law. See more here (in French).
Saving work for future use Possiblity to save your or others´ work for reuse/reproduction
Yes, with an account.
Tailorability (If so, how?) Possibility of the tool to be used for a range of different activities (e.g. to what extent you can organize a project assignment with a central activity based on this tool)
Yes, users create activities from scratch, adjusting them for any purpose.