OPF Glossary - N
-
natural language
- a native
language people speak
(e.g., English).
Contrast with
implementation language and
modeling
language.
-
navigation diagram
- a diagram showing the webpages of a website (or more
generally, the screens of a graphical user interface) and the
navigation paths between them.
Also known as a
sitemap.
-
network
- a collection of computers that have been connected so
that they can share resources and information over a
transmission media.
See also bus [network],
extranet,
Internet,
intranet,
local area
network (LAN),
mesh network,
metropolitan area network (MAN),
personal area
network (PAN),
ring network,
star network, and
wide area network
(WAN).
-
network administration
- the
operations
task during whic one or more
networks are administered
to ensure that they continuously function properly.
-
network administrator
- the
role that is played when a
person administers one or more networks.
-
network connectivity
device
- a
hardware
component that connects computers on a network.
See also bridge,
brouter,
cable,
cache,
connector,
firewall,
hub,
modem,
network
interface card,
receiver,
repeater,
router,
switch, and
transmitter.
-
nonrepudiation
- (1) a user-oriented
security
quality
requirement specifying the degree to which an
application or
component shall prevent
a party to an interaction (e.g., message, transaction) from
denying having participated in all or part of the
interaction.
- (2) a
quality
factor measuring the degree to which an application or
component actually provides proof preventing a party to an
interaction from repudiating it.
- (3) a
security
mechanism by which an application or component measuring
the degree to which an application or component prevents a
party to an interaction from denying having participated in
all or part of the interaction. For example, the application
or component may use digital signatures, timestamps,
encryption, decryption, and hash function to provide
tamper-proof records of the:
- Message contents.
- Time that the message was sent
- Time that the message was received.
- Message sender’s identity.
- Message recipient’s identity.
Contrast with auditability.
-
normal path
- a path through a
use case that represents
a normal sequence of interactions.
Contrast with exceptional
path.