FE (Functional Element)

An FE (Functional Element) is an abstract building block that consists of a set of interfaces and operations on those interfaces to accomplish a task. Mapping between functional elements and physical implementations may be one-to-one, one-to-many or many-to-one.

a.k.a.

Functional Entity

NENA-STA-010, Detailed Functional and Interface Standards for the NENA i3 Solution

[https://www.nena.org/page/InterconnectingESInet-PSBN NENA-STA-031. NENA Standard for Interconnecting Emergency Services IP Networks and Public Safety Broadband Networks]