ISO/IEC TR 26927:2011 情報技術—システム間の電気通信と情報交換—企業の電気通信ネットワーク—エンタープライズ通信のためのモビリティ | ページ 6

3.1

access network

network entity that provides connectivity between a user’s terminal and an enterprise or a public core network

3.2

accounting

process of collecting resource usage measurements and apportioning charges for services provided by a network operator or service provider

3.3

authentication

proof that an identity is genuine, e.g. the user is as claimed

3.4

authorization

process or result of assigning certain execution rights or a role to an authenticated user or entity

3.5

availability

property of being accessible and usable upon demand by an authorized entity

3.6

core network

portion of a communication system composed of networks, system equipment and infrastructures providing services and connections between access networks, service provider networks and other networks

3.7

corporate network

telecommunication network serving a corporation

Note 1 to entry: A corporation is a single organization, an extended enterprise, or an industry application group as defined by the International Chamber of Commerce (ICC).

Note 2 to entry: Sets of equipment [Customer Premises Equipment (CPE) and/or Customer Premises Networks (CPN)] are typically located at geographically dispersed locations and are interconnected to provide networking services to a defined group of users. A corporate network can employ connection-oriented and connectionless technology.

3.8

domain

collection of physical or functional network entities belonging to a restricted geographical area, a topological IP area or owned/administered by an enterprise, a public carrier or a service provider

3.9

enterprise network

corporate network comprising session layer capabilities and optionally application layer capabilities hosted on one or more infrastructures

Note 1 to entry: Infrastructures can include the enterprise's own infrastructure (dedicated NGCN), the infrastructure of one or more hosting NGNs, the infrastructure of one or more hosting NGCNs or any combination of these.

3.10

end-to-end security

security (including privacy and information integrity) for the exchange of information between two or more end points that relies on protocols and mechanisms that are implemented exclusively on those endpoints

3.11

enterprise-grade service

performance level for security, availability and service perception that is comparable to PBX-based services

3.12

firewall

security means to shield an enterprise IP network from unwanted traffic by blocking certain IP addresses and port numbers or certain application data content

3.13

fixed-line network

WAN or MAN provided by a fixed-line operator (e.g. enterprise) which provides in general wired access, which may be extended locally by wireless access networks (DECT, WLAN, etc.)

3.14

foreign domain

administrative domain of a visited network

3.15

handover

handoff

process of transferring an ongoing network association of a mobile terminal/user from one point of attachment to another in case of crossing a cell or network boundary

3.16

home domain

domain that administers the account of a mobile user/terminal

3.17

home network

network that is in a mobility architecture the central source for mobility services to the mobile user/terminal and which interacts with the visited network

3.18

hotspot

wireless access point to the public internet based on WLAN technology

3.19

identity

name by which the user of a network is known

3.20

internet

public IP network

3.21

intranet

closed IP network of an enterprise used for data or converged communication services by members of the enterprise

3.22

IP network

public or private network offering connectionless packet-mode services based on the Internet Protocol (IP) as the network layer protocol

3.23

IP-PBX

PBX capable of IP-based communications between users

3.24

location

information identifying the network point of attachment (PoA) through which a user/terminal is currently accessing a network or the user's terminal's geographical position

3.25

mobile network

wireless WAN or MAN that provides continuous connectivity to mobile terminals

3.26

mobile terminal

device which is able to access the enterprise network from different locations

3.27

mobile user

user who accesses ICT resources of the enterprise from different locations

3.28

multihoming

able to use more than one IP address at any given point of time

3.29

moving network

LAN or WLAN that is installed in a moving vehicle, e.g. train, and connected to a mobile network

3.30

Next Generation Network

packet-based public network able to provide telecommunication services, able to make use of multiple QoS-enabled transport technologies and in which service-related functions are independent of underlying transport-related technologies

3.31

Next Generation Corporate Network

self-contained corporate network designed to take advantage of emerging IP-based communications solutions and that can have its own applications and service provisioning

Note 1 to entry: A Next Generation Corporate Network can be an entire enterprise network if none of that network is based on public network infrastructure.

3.32

portal

web-based interface that provides a single access point to dispersed information

3.33

presence

set of data representing the status and availability of a person/object or a group of persons/objects for communication

3.34

privacy

right of individuals to control or influence what information related to them may be collected and stored and by whom that information may be disclosed

3.35

private cloud

server farm for a closed user group

3.36

profile

total set of user- or terminal-related information, preferences, rules and settings

3.37

quality of service

level of performance for the transport of data

3.38

roaming

service that enables users/terminals to use access networks and mobility services of a network operator which is different from the operator of the user’s home domain

3.39

session

temporary interactive information interchange between two or more nodes in a network architecture

3.40

single sign-on

access control mechanism where a user logs on once and gains access to a number of applications and services without being prompted to log in again at each of them

3.41

terminal

device enabling users to access services via an access network

3.42

transit network

network that provides interconnection between networks

3.43

user

person, organization or technical object that accesses a network in order to communicate using the services provided by that network

3.44

Virtual Private Cloud

private cloud provided by a third party service provider

3.45

Virtual Private Network

virtual network that can deliver ubiquitous and secure connectivity over a shared network infrastructure (e.g. public carrier networks) using the same access policies as an enterprise network

3.46

visited network

network that interacts with the home network to provide mobility services to the mobile enterprise user/terminal at PoAs in a foreign network