Validation checking and testing that pages function as intended
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Transcript Validation checking and testing that pages function as intended
Validation
checking and testing
that your web pages
function
as intended
Code
(HTML*)Validation
the process of ensuring
that your documents
adhere to the rules of
the particular markup
language used
*HyperText Markup Language
W3C -World Wide
Web Consortium
•Organisation started in 1994 to lead the World Wide
Web to its full potential by developing common
rules that ensure the www works for everyone.
•Many organisations around the world pay to be
members of W3C
•W3C employs staff around the world who develop
web specifications and software
•Director is Tim Berners-Lee, said to be the inventor
of the www
•Set the standards and try to maintain
consistency in the unregulated world of cyberspace
DTD (Document Type
Definition)
•The DTD defines the tags and syntax
that are used to structure web pages
and declares what the code means.
•Use DTDs to validate against W3C standards.
•By default, Macromedia Dreamweaver MX
always adds the relevant DTD
to your web page code.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
Dreamweaver 4.0 or lower, did not automatically
include the DTD declaration.
TYPES of Code
Validators
Validators can be on-line,
installed as a separate program on your computer,
part of an existing program, free or cost $ …
*Use W3C validator to check webpages
against the DTD (Document Type Definition)
http://validator.w3.org/
*There are programs that scan webpages looking for
code errors and will often warn you of common style
problems, accessibility and other issues
http://watson.addy.com/
Dreamweaver
Various built-in Validation,
Checking & Testing Tools
SPELLING- it is important !!
Have you checked how your page looks at different
Screen Resolutions?
Good Designers
validate/check/test
their Web Pages
•Spelling
•Grammar
•Accuracy
•Different Browsers and Versions of Browser
•Usability
•Accessibility for disabled
•Computer Systems - screen resolution, colours
•Download Time
•Plug ins …