Forrester is introducing a concept called the Moments Index; this video explains it. This index helps digital business professionals decide which features, content, and services to build on what medium — such as a graphical user interface (GUI), chat, voice, or extended reality (XR) — as consumers' comfort with technology evolves from awareness to adoption to usage to comfort to preference. Forrester plans to build a minimum viable product (MVP) of the Moments Index in 2019.