vce it theory slideshows
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Power Websites CMS and CSS. VCE IT Theory Slideshows. By Mark Kelly McKinnon Secondary College Vceit.com. Contents. Static websites CMS – Content Management System CSS – Cascading Style Sheets. Static Websites. - PowerPoint PPT PresentationTRANSCRIPT
VCE IT Theory Slideshows
By Mark KellyMcKinnon Secondary College
Vceit.com
Power Websites
CMS and CSS
Contents
• Static websites• CMS – Content Management System• CSS – Cascading Style Sheets
Static Websites
• Each page is produced by hand, using GUI web editor (e.g. Dreamweaver) or raw HTML code
• Pages never change without being edited• Can be dull and unresponsive to current
conditions• Imagine a static eBay site where the finishing
time of all auctions had to be entered by hand every second.
Dynamic Websites
• Constantly changing – e.g. eBay• Can respond to events and the profile of the
user• Can be achieved to a degree with Javascript
(e.g. a countdown timer on a static page)
Content Management Systems
• CMS• Examples – Wordpress, Joomla, Drupal• Database-driven software that creates pages
when needed and tailor-makes them for the time, the circumstances, the user
CMS
• The CMS fetches content (e.g. text, data, pictures) from the database and creates a webpage with pre-defined formatting chosen by the webmaster.
• The same pages might look different for each person viewing it (e.g. their ‘My eBay’ pages, or their Facebook pages.)
Pros and consPros Cons
Site maintenance is far easier and quicker Must install CMS software onto your webserver – some are expensive
Sites become dynamic and pages change automatically
Must learn how to use the CMS
Easier to manage assets (pictures etc) Can be expensive/slow to convert an existing static site to CMS
Better looking sites
Site has a consistent appearance across all pages
Far less chance of 404 errors or bad links
Webmaster creates content (e.g. body text)
Media (pix, videos etc) are stored in the database
The CMS combines content, media, formatting to create web pages which are sent to the visitor’s browser
Cascading Style Sheets• CSS• Instead of repetitively
formatting lots of types of text in the same way, define the formatting in a CSS file and just mark text with the style it needs
CSS
• To change the look of main headings, change the definition of HEADING1 once in the CSS file.
• Don’t have to find and change every piece of HEADING1 text across the site
• Far quicker, easier• Creates consistently formatted
sites
CSS
• E.g. CSS file contains “Heading 1 = Bold, TNR, size 20”
• In a webpage, some text is tagged as being “Heading 1” style.
By Mark KellyMcKinnon Secondary Collegevceit.com
These slideshows may be freely used, modified or distributed by teachers and students anywhere on the planet (but not elsewhere).
They may NOT be sold. They must NOT be redistributed if you modify them.
VCE IT THEORY SLIDESHOWS