[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[RFC 6125 - Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)]]
([TIME[2015-03-13 22:27:53 +09:00]] 版)
<https://tools.ietf.org/html/rfc6125#section-1.8>
]FIGCAPTION]

>  interactive client:  A software agent or device that is directly
controlled by a human user.  (Other specifications related to
security and application protocols, such as '''['''WSC-UI''']''', often refer
to this entity as a "user agent".)

]FIG]