Card sharing is the tentative generic term I'm using for all kinds of situations where the person doing the spaced repetition reviews is not the same as the person who wrote the cards. This can happen for instance via deck sharing in Anki, or in the mnemonic medium like in Quantum Country and Orbit, or in a group study setting where you collaborate with study partners to make cards.
- Self-graded prompts made for others must provide guidance for grading
- Card sharing allows less valuable cards to be created
- Existing implementations of card sharing have nontrivial overhead
- Booster card