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Click on a numbered or lettered box below to show list of keywords and terms.
N-tier
(Context: )
Definition
N-tier architecture (often referred to as multi-tier architecture) describes a method of dividing an application into three or more physical or logical tiers to provide for ease of maintenance and flexibility. Any architecture that utilizes a 3-tier architecture (presentation, application/business logic and database layers), which componentized one or more of the logical tiers is said to be n-tier. Typically this componentization occurs in the business rule tier, however this is not a requirement. An n-tiered application is designed to integrate a diverse collection of reusable, component based services into a unified system. The layers may operate in multiple configurations, using any number of physical systems. This architecture provides a flexible and scalable solution for meeting the State's current and future requirements. Example: an application that uses middleware to service data requests between a user and a database.
Naming Service
(Context: )
Definition
Refers to the ability of application programs to locate application components offered by other applications in a distributed environment. Typical naming service should support registration of services in the naming service and their subsequent location through the naming service.
NAS Snapshot
(Context: Software)
Definition
Technology that tracks changes to files and keeps copies of changes so that an earlier version of the file can be recreated on demand.
EA-Solution-Data-Availability-Requirements.pdf (virginia.gov)
National Institute of Standards and Technology (NIST)
(Context: )
Definition
Formerly, the National Bureau of Standards. A United States governmental body that helps to develop standards.
Near Critical Activity
(Context: )
Definition
A schedule activity that has low total float.
PMBOK
Near Real-Time (NRT)
(Context: Technology Management)
Definition
Refers to the time delay introduced by automated data processing or network transmission between the occurrence of an event and the use of the processed data, such as for display or feedback and control purposes. Also known as Nearly Real-Time.
https://www.vita.virginia.gov/media/vitavirginiagov/it-governance/ea/pdf/Event-Log-Management.pdf
Net Present Value
(Context: )
Definition
The difference between the discounted present value of benefits and the discounted present value of costs. This is also referred to as the discounted net.
CCA
Network
(Context: )
Definition
1) A configuration of data processing devices and software connected for information interchange.
2) A group of two or more computer systems linked together.
Network File System (NFS)
(Context: )
Definition
A client/server application that lets a computer user view and optionally store and update files on a remote computer as though they were on the user's own computer. The user's system needs to have an NFS client and the other computer needs the NFS server. Both of them require that you also have TCP/IP installed since the NFS server and client use TCP/IP as the program that sends the files and updates back and forth. (However, the User Datagram Protocol, UDP, which comes with TCP/IP, is used instead of TCP with earlier versions of NFS.) NFS was developed by Sun Microsystems and has been designated a file server standard. Its protocol uses the Remote Procedure Call (RPC) method of communication between computers. NFS has been extended to the Internet with WebNFS, a product and proposed standard that is now part of Netscape's Communicator browser. WebNFS offers what Sun believes is a faster way to access Web pages and other Internet files.
Network Interface Card (NIC)
(Context: )
Definition
A hardware device used to connect computers to a wired or wireless network.
Network-Attached Storage (NAS)
(Context: )
Definition
Hard disk storage that is set up with its own network address rather than being attached to the department computer that is serving applications to a network's workstation users. File requests are mapped by the main server to the NAS file server.
Node
(Context: )
Definition
One of the defining points of a schedule network; a junction point joined to some or all of the other dependency lines. See also arrow diagramming method and precedence diagramming method.
PMBOK
Non-critical
(Context: General, Technology Management)
Definition
A business processes or system for which an outage will not significantly affect an agency's mission.
Non-sensitive Data
(Context: )
Definition
Data of which the compromise with respect to confidentiality, integrity, and/or availability could not adversely affect COV interests, the conduct of Agency programs, or the privacy to which individuals are entitled.