User Guide

328 Glossary
UNC
Universal Naming Convention. A UNC path allows you to identify a shared file on a
computer without specifying the storage device it is on. A UNC path only works
within a specified network; for example, in your Network Neighborhood. The UNC
format is: \\servername\sharename\path\filename; for example,
\\printserver\floor2printer.
URL
Uniform Resource Locator. A unique identifier or “address” for an Internet file. The
URL contains at least the protocol (e.g., http or ftp) and the host name, but can also
include a port number, lengthy file paths if the file is deeply nested on a server, and
complicated query strings, especially if the file is dynamically generated like with
JavaServer Pages ( JSP). For security purposes, some URLs are hidden from the user.
UTF-8
USC Transformation Format (USC is the Universal Character Set). Encoding format
that enables computers to handle both ASCII and Unicode.
W3C
World Wide Web Consortium. Creates specifications, guidelines, software, and tools
to achieve its vision for the Web—that all users would equally experience the Web
regardless of their browsers, operating systems, or physical disabilities; and that the
Web would be a free flow of information, commerce, and communication.
watch
Expression or variable that you are monitoring, so that you can see its value at given
points while the debugger steps through your code.
WDDX
Web Distributed Data Exchange, an open source XML-based technology that enables
the exchange of complex data between Web programming languages, creating what
some refer to as 'Web syndicate networks'. WDDX consists of a
language-independent representation of data based on an XML 1.0 DTD, and a set of
modules for a wide variety of languages that use WDDX. WDDX can be used with
HTTP, SMTP, POP, FTP and other Internet protocols that support transferring textual
data. For more information, see the WDDX Web site at www.OpenWDDX.org.
XHTML
Extensible Hypertext Markup Language. Reformulation of HTML as an XML
application. It is almost identical to HTML 4.01, but more strict and clean. It is
designed to replace HTML, and it works on most existing HTML browsers. For more
information, see the W3C HyperText Markup Language Home Page at www.w3.org/
MarkUp/.
XML
Extensible Markup Language. Defines the structure of information, or how the
information could be stored in a database. For example, an XML language for
cooking could have a
<recipe> tag, and <recipe> could contain tags for <header>,
<ingredients>, and <instructions>. The power of XML lies in the fact that the