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An introduction to frontend engineering given to the Web Application Development course at Benedictine University.
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Mark Meeker
Benedictine University14 April 2008
An Introduction to Front End Engineering
[m2]
“As far as the customer is concerned, the interface
is the product.”- Jef Raskin
Just another name for...
• Front End Engineering
• Front End Development
• UI Engineering
• Web Development
• Web Production
Engineering
Engineering
Design
UsabilityPsychology
PerformanceArt
Layout
Accessibility
Linguistics
Security
Localization
HTTP
CSS JavaScript
HTML
Server Side Presentation Code(JSP, PHP, Perl, Ruby, Python, ASP, et. al. )
the “Back End”
MVC
Controller
Model
View
The Browser
Runs on...
Runs on...
Runs on...
“Browsers are the most hostile software engineering
environment possible”- Douglas Crockford
Browser “Quirks”
The “Box Model”
Content
Padding
Margin
The “Box Model”
Content
Padding
Margin
Height
.box { height: 50px; padding: 10px; margin: 5px; }
The “Box Model”
Content
Padding
Margin
Height
.box { height: 50px; padding: 10px; margin: 5px; }
The “Box Model”
Content
Padding
Margin
Height
.box { height: 50px; padding: 10px; margin: 5px; border: 2px; }
Height
CSS
http://csszengarden.com
Process
<img src=”/map/image” />
<ul><li><a href=”/map/move?dir=n”>North</a></li><li><a href=”/map/move?dir=e”>East</a></li><li><a href=”/map/move?dir=s”>South</a></li><li><a href=”/map/move?dir=w”>West</a></li>...
</ul>
<ul><li><a href=”/map/zoom?level=1”>Zoom Level 1</a></li><li><a href=”/map/zoom?level=2”>Zoom Level 2</a></li><li><a href=”/map/zoom?level=3”>Zoom Level 3</a></li>...
</ul>
Progressive Enhancement
HTML
Content
CSS
Presentation
JS
Behavior
“No Frills”“Dress it Up”
“Make it Sing”
JavaScript &Ajax
AsynchronousJavaScriptAndXML
credit: http://www.lukew.com/resources/articles/ajax_design.asp
credit: http://www.lukew.com/resources/articles/ajax_design.asp
JavaScript Libraries
Dojohttp://dojotoolkit.org
Prototype.jshttp://prototypejs.com
jQueryhttp://jquery.org
YUIhttp://developer.yahoo.com/yui
Usability
Fitts’ Law
The time to acquire a target is a function of the distance to and size of the target.
UsabilityTesting
A/B Testing
Yes No
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AccessibilityPerformance
Security
ContactJavaScript Libraries
Dojo - http://dojotoolkit.org/
jQuery - http://jquery.com/
YUI - http://developer.yahoo.com/yui/
Prototype - http://prototypejs.org/
Learning from Others
ContactJavaScript Libraries
Dojo - http://dojotoolkit.org/
jQuery - http://jquery.com/
YUI - http://developer.yahoo.com/yui/
Prototype - http://prototypejs.org/
ToolsFirefox
http://getfirefox.com
Web Developer Toolbarhttp://chrispederick.com/work/web-developer
FireBughttp://getfirebug.com
YSlowhttp://developer.yahoo.com/yslow
Resources
The Web Standards Projecthttp://webstandards.orghttp://streetteam.webstandards.org/goodbooks/
Designing with Web Standards by Jeffery Zeldman
ResourcesA List Apart
http://alistapart.com
Ajaxianhttp://ajaxian.com
QuirksModehttp://quirksmode.org
Yahoo User Interface Bloghttp://yuiblog.com
UIE Brainsparkshttp://www.uie.com/brainsparks
Contact
Slides:http://markmeeker.com/events/ben2008/
Email:mark@markmeeker.com
Blog:http://markmeeker.com
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