|
- Standards
& Protocols That Enable
Communication
- Between
Host Databases and Client
Computers
|
Scope
The following protocols and standards
are important to the library automation environment.
TCP/IP
(Transmission Control Protocol/Internet Protocol)
- The underlying protocol of the
Internet that enables all communications over it and fixed "IP"
addresses for all computers linked to the Internet.
- Most other communications
technologies or protocols ride on top of TCP/IP.
HTTP (Hypertext
Transfer Protocol)
- The protocol that underlies
multimedia World Wide Web communications, including Web page
addressing, and live links (hyperlinks) among different Internet
sites.
- HTTP runs on top of TCP/IP and
the Internet like an envelope being carried by a US Postal
Service.
- The standard enables "client"
(your local) computer to display of graphics, animation, video,
and audio from "host" Web sites around the world.
Z39.50
- A standard for communication
among multiple information systems, particularly LAS.
- Z39.50 enables standardized
search and retrieval of information from remote text-based library
catalogs and commercial databases based on different computer
system technologies with different interfaces.
- Most text-based information
systems are moving to this standard.
OpenURL
- A standard communications
protocol for accessing and using remote electronic resources,
particularly the databases used in library systems and commercial
content products. It facilitates the linking and simultaneous
searching of multiple online resources.
Telnet
- A standard method (and software)
for logging into and using remote computers.
Gopher
- A text-based, menu-driven way of
linking to and accessing the resources on remote
computers.
- Gopher has been replaced by the
World Wide Web although some gopher resources remain online around
the world.
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