Putting Education Content on a Diet Ernie Duran Volker Kleinschmidt Stephen M. Weeks

Putting Education Content on a Diet Ernie’s Presentation Overview Issues Solutions Images Video

Putting Education Content on a Diet Issues User Internet connections Computer Systems

Putting Education Content on a Diet User Internet Connections Dial Up access 56kbps is top speed Web pages take a while to load Images take the longer to download Fast moving video can stutter

Putting Education Content on a Diet User Internet Connections Broadband Faster access speeds Can get better streaming video You should not exploit the faster connection Don’t create huge files just because you can get away with it Larger files can overburden the network

Putting Education Content on a Diet Computer Systems Older computers May not be equipped handle the media Not enough memory Slow Processor Missing upgrades

Putting Education Content on a Diet Solutions Put you content on a diet Provide two versions Have access to content for slower connections One for faster connections Explicitly state what are the requirements for viewing the content Required Plug-ins Memory constraints How much processing power is need

Putting Education Content on a Diet Trim you content Images Each individual image should not be any larger than 50k Break up a large image into smaller slices Create Thumbnails for larger images

Putting Education Content on a Diet Trim you content Images Photographs use JPEG compression “Lossy" compression Good for a image with a range of color tones Mainly used with photographs or high quality/content image Line art and Drawings use GIF compression Limited to 256 colors GIF89 has transparency Good for line art graphics Best for images with solid colors

Putting Education Content on a Diet Trim you content Video Create a video for streaming Don’t not make people download the video Keep screen size to 320 x 240 pixels, also called quarter screen Create bit size videos Keep down to no longer than 20 minutes For longer video create a menu to directly access different points in the timeline

Putting Education Content on a Diet Trim you content Video Provide two video streams One for slower Internet connects One for faster Internet connects Another options is the store video on a CD Can get good full motion video from a CD Doesn’t rely on the Internet to access the video

Putting Education Content on a Diet Tools For Trimming Content Macromedia Fireworks Designed to help with Web graphics Can preview different file sizes Can reduce image size, create thumbnails RealNetworks Helix Producer Plus Converts video to RealVideo Can create multiple streams Reduce screen size to quarter screen

Putting Education Content on a Diet Tools For Trimming Content Macromedia Fireworks RealNetworks Helix Producer Plus

Putting Education Content on a Diet Thank you for your time.