2.1 KiB
Domain Glossary
Merchant
A business represented in the source data. A merchant owns terminals, payment sessions, and merchant users. In the MVP, detailed data is visible only within that merchant's authenticated boundary.
Merchant User
A person/account permitted to authenticate as one merchant. The hackathon seed creates an initial demo user for each merchant; a merchant and a merchant user are not the same concept.
Terminal
A merchant-owned payment endpoint identified by the source terminal key.
Payment Session
One payment journey identified by the source session key. A session belongs to one merchant and terminal and can contain one or more payment attempts.
Payment Attempt
One try within a payment session, distinguished by its try sequence. This is the grain of a source CSV row and must not be confused with a unique payment session.
Opaque Payer Token
The nullable payer_card_key source value. It is an unverified, merchant-scoped token used only for internal approximate repeat-payer analytics. It is not a card number or verified person identifier.
Import Run
One traceable attempt to ingest a specific source archive/schema using a specific importer revision. It records outcome, counts, validation evidence, and provenance.
Calendar Date
One civil date enriched with Gregorian and Jalali calendar attributes, Persian month/season, weekday, and reporting attributes.
Reporting Period
An approved time window used for metrics: Tehran-local day, week, Jalali month, or Persian season.
Analytical Metric
A deterministic numerical measure with a definition, source fields, filters, period, unit, missing-data behavior, and drill-down path.
Analytics Projection
A rebuildable summary derived from normalized source-of-truth records to answer an approved metric efficiently. A projection is not independent business truth.
Peer Cohort
An approved group of other merchants used for anonymized comparison. The active merchant is excluded, and a benchmark is suppressed unless at least 10 peers and 1,000 peer sessions contribute.