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The XML Way
The structured approach to instructional design is seen to have the
following benefits[8]:
- Allows the same courses to be delivered across multiple media and
delivery environments (Print, WWW, CD-ROM).
- Supports a consistent instructional design and development process
- Provides a definitive view, including meta-data, of the components
of well constructed educational resources responsive to different
learner profiles
- Provides opportunities for learners to approach the course material
through multiple paths or views.
- Facilitates the re-purposing and updating of content.
- Conforms to Information Technology standards to ensure portability
and long-term use.
There are three steps in the process of implementing an XML content
reuse system: 1) Analysis, 2) Chunking, 3) Operation. The process is
very simple, in theory:
- A DTD is selected and tested.
- The repository is created using tables that mirror the DTD.
- Legacy content is converted to XML.
- XML content is placed in the repository.
- Users query the database to construct new documents
- Users add new content to the repository as needed.
As mentioned before, the initial analysis is perhaps the most difficult
stage of the implementation and it is the one that has the most persistent
effects. Having once decided upon the one and only way that the content
will be parsed, staff members are trained carefully in how to accomplish
the chunking of legacy content into the system.
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2003-07-21