Business logic

The IBA’s business rules — what the platform does, framed in domain terms (members, currency, skills, bookings, fees) rather than the code that implements it.

Modules

Module	Covers
Member lifecycle	`role_id` transitions, registration, authentication, banning, deletion.
Skill levels	Progression rules across all programmes (flyer, AFC, instructor, trainer, examiner, coach, military).
Approval levels	Who can approve what. Derivation of `approval_level_*` fields.
Currency	Per-role currency clocks, grace periods, recovery paths.
Safety training	Initial vs recurrent training, approval workflow.
Logbook	Entry creation, state machine, immutability rules.
Tunnel bookings	Booking → logbook flow, currency split.
Fees & payments	Membership fees, charges, refunds.
Competitions	Competition scoring rules.
Integrations	Public-facing rules for booking-system integrations.