TTI

TTI is an acronym that can refer to multiple concepts in technology, communications, and business. The most widely used meanings include Time to Interactive, Transmission Time Interval, and TTI, Inc., a distributor of electronic components.

In web performance, Time to Interactive measures the point at which a page becomes fully usable for the user. It is reached after the page's initial content has loaded and the main thread is free of long tasks so that user input is handled within a short latency. It complements metrics such as First Contentful Paint and Largest Contentful Paint and is commonly reported by performance tools and audits to guide optimizations.

In mobile communications, Transmission Time Interval refers to the duration of a scheduled transmission. In LTE and similar systems, TTIs are typically 1 millisecond long, and the network schedules data for a TTI, deciding which users and services transmit in that interval. TTIs are subdivided into resource blocks; shorter TTIs enable lower-latency transmissions, though at higher signaling overhead.

TTI, Inc. is a global distributor of electronic components, including passive components, interconnects, and related products. It operates as a subsidiary of Avnet, with customers and suppliers around the world.

Because TTIs are used in different domains, context is essential to determine the intended meaning.