PGDEL/DECP05/Unit3/Ch03.02
Uttarakhand Open University
Post Graduate Diploma in e-Learning
| 
DECP 05: e-Content Creation
Approaches for delivering e-Content
A.) Asynchronous Mode
Asynchronous or self study learning, consist that content is available online and the student can access anytime. Where communication, collaboration and learning can occur in different time and different place, and users can select when they wish to communicate. Based on the developed techniques of networking, asynchronous learning is split up into on-line and off-line status.
i) Off-line Learning
Computer-Aided Instruction (CAI) is a typical method of off-line learning. In general, the content of CAI — text, graphs, pictures, audio and video are stored in a CD-ROM. Recent product a Digital Versatile Disc called DVD is capable to store 4.7GB/8.5GB (single layer DVD-5 or dual layer DVD-9) in comparison to a traditional CD which can store only 700MB of data.
ii) On-line Learning
The content of on-line learning is built by the hypermedia technique, which is stored in the network computer server. Students can study or review the contents from the web site at anytime. There are two types of data sources, the static type based on text, graphs and pictures combined. The second is dynamic involve motion pictures, associated texts, matched sounds, recorded video lectures etc. The static resources require less bandwidth than the dynamic content. Students would pay more attention on the subjects due to the colorful and diversified environment; hence the outcome is better than the former one. But, huge amount of data and slow transmission speed of the net are its weaknesses.
