architecture

Compare ACP, UCP, AP2, MPP, x402, MCP and A2A by the architecture layer they solve in agentic travel commerce.

Design user intent, mandates, delegated authority and human-in-the-loop checkpoints for AI-driven travel purchase and servicing side effects.

Design AI agent → search → offer → reprice → confirmation → payment → booking → servicing with travel-specific authorization, idempotency and audit boundaries.

Design agent-driven cancellation, refund and servicing with explicit consent, traceability, versioned evidence and post-booking authorization boundaries.

Prevent duplicate booking and payment caused by agent loops, retries and tool invocation using idempotency, side-effect guards and UNKNOWN-aware recovery.

Recover ambiguous travel-booking timeouts with UNKNOWN state, authoritative lookup, reconciliation and safe retry gates.

Design canonical Offer, Order and Booking lifecycle boundaries with an explicit booking state machine for travel integrations.

Design idempotency boundaries and duplicate-booking safeguards across travel booking, payment, cancellation and refund operations.

Model payment and supplier booking as a distributed transaction using authorization, capture, compensation, UNKNOWN outcomes and reconciliation.

Compare synchronous and asynchronous travel booking orchestration across latency, recovery, UX and provider capabilities.

Design Saga and compensation patterns for travel booking, payment, cancellation and refund workflows where rollback is impossible.

Trace travel transactions from search through booking and servicing using correlation IDs, distributed traces, metrics and structured domain events.

Separate Merchant of Record, Seller of Record, agency collect, hotel collect and pay-at-property models across booking and reconciliation.

Design safe boundaries for passenger identity, contact, payment and travel-document data across search, booking, logging and provider integrations.

Design an end-to-end reference architecture for travel search, canonical offers, repricing, payment and booking across supplier integrations.

Model post-booking change, cancellation, refund, exchange, ancillary and schedule-change workflows with a canonical servicing architecture.

Design webhook, polling and reconciliation roles for travel booking systems, including duplicate, out-of-order and missing-event recovery.

Design travel-booking state around create, confirm, modify, cancel, fail and reconcile events with explicit ordering and idempotency.

Design TTL, event invalidation, stale-while-revalidate and live-reprice boundaries for hotel and flight pricing.

Design a canonical hotel identity layer that maps multiple supplier property records into one traceable entity with provenance and merge history.

Design supplier-to-OTA/metasearch direct connections around ownership, mapping, retry and reconciliation.

Compare GDS, bedbank/B2B marketplace and direct-connect models across inventory ownership, coverage, booking lifecycle and operations.

Compare GDS and NDC across airline shopping, Offers/Orders, content ownership, servicing and integration architecture.

Design Availability, Rates & Inventory flows with restrictions, stop-sell, CTA/CTD, idempotency, reservation delivery and reconciliation.

A technical guide to how travel supply moves from PMS/CRS/PSS through GDS, NDC, bedbanks and channel managers into OTA and metasearch layers in Turkey.

Schedule travel inventory refreshes by demand, volatility, freshness and cost instead of using one fixed interval for every entity.

Design hotel search across multiple suppliers using fan-out, normalization, deduplication, timeout budgets, partial results and ranking.

Design deterministic travel-offer fingerprints across provider, room/rate, policy and search-context dimensions without coupling identity to price.

Model hotel, flight, transfer, bundle identity, pricing, cancellation and booking lifecycle for package-holiday distribution.

Compare PMS, CRS and Channel Manager roles in hotel distribution by inventory ownership, ARI, reservation flow, mapping and source-of-truth boundaries.

Model travel pricing as timestamped observations and change events instead of only overwriting mutable current-price state.

Design provider fallback for travel search and booking across outages, timeouts, stale cache and alternate suppliers.

Build an explainable travel-provider health score using latency, success, freshness, price accuracy, coverage and handoff quality.

Compare push, pull and hybrid distribution models across freshness, latency, rate limits, caching, reconciliation and operational ownership.

Manage parallel travel-provider calls with latency budgets, bounded concurrency, early useful results and controlled final merging.

Design explainable travel ranking that separates relevance, normalized price, offer quality, provider reliability and commercial constraints.

Separate sponsored placement, bids and commissions from organic relevance with transparent, auditable metasearch ranking governance.

Design deterministic reconciliation across booking, payment, cancellation and supplier events with explicit authority and audit rules.

Trace a travel offer from supplier response through normalization, cache, ranking and booking handoff with explicit lineage identifiers.

Isolate hotel and flight provider contracts behind adapters with explicit DTO boundaries, normalization, error taxonomy and versioning.

Design travel-metasearch caching with realistic search load, adaptive TTLs, selective live rechecks, stale-price risk, observability and production trade-offs.

Design timeout budgets, parallel supplier calls, partial-result handling, circuit breakers and latency SLOs for hotel and flight metasearch search pipelines.