Moodle Review No. 3: Moodle environment, Bandwidth considerations
A great resource for the study of bandwidth issues in designing instructional materials for moodle is Aptivate's "Web Design Guidelines for Low Bandwidth".
They try to explain why we should consider bandwidth in design even if it appears that the Internet is getting more powerful. This is particularly important for third world countries where the net is not very reliable and is slow.
They have develop an extensive set of guidelines. And the top ten tips are here http://www.aptivate.org/webguidelines/TopTen.html . Example is the use of 25kb pages to load page in 10 seconds for 20 kbps connections.
This is a must read for anyone reviewing the effect of bandwidth in online instructional design.
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