Spaced Repetition Architecture

This document describes the translation-based spaced repetition system, its data model, and study flow.

Overview

• The SRS system is translation-pair based. Each translation row (a phrase pair) produces two cards:
  • primary_to_secondary
  • secondary_to_primary
• Cards store only scheduling state and foreign keys. The displayed text is pulled live from phrase rows.
• A deck contains translation pairs. Cards are scoped to a single deck.

Data Model (WatermelonDB)

Tables