Architecture

NDC API Latency Budget Tool

Break down end-to-end booking flow latency across shopping, pricing, ancillaries, payment, order creation and UI/network time.

Total latency-Sum of all flow components

Headroom-Remaining time before target breach

Target used-Total as a share of target

API share-Shopping, offer, ancillary and order time

Pair this with p95 and p99 production measurements. Average latency hides the long tail that drives abandoned carts and support contacts.