Information Objects
Information or knowledge objects are self contained, meaningful chunks or
units of information, whether accurate or not. Each of the following types could
be an information object:
- Block of Text
- Graphic
- Web page
- Table
- Graph
- Multimedia file
- Flash animation
Information objects are sometimes called "content objects." They are
typically distinguished from "learning objects" in that they do not specify
instruction, but merely provide information.
The Purpose of an Information Object
Some information objects are created for a single purpose in a single
situation. Others are created to be used in many situations. Sometimes, an
object becomes repurposed, being used in ways never intended by the creator.
Consider the following graphic, which is an information object, and see if
you can determine what its purpose is?
Self Test: A Graphic
Information Object
The following is a jpg file that is regularly used
with learners. What is the purpose of the following
graphic?
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Answer:
Actually, this single graphic was uploaded to a Website and used
on four different occasions to illustrate the following:
- A Blackboard Communication Center
- How a school's logo can be put into Blackboard
- A cropped jpg image
- An information object
The answer to the question is: "The object has no purpose, but it can be
put to many purposes."
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Terminology
This has led to the coining of three terms:
- reusable information object
- repurposeable information object
- sharable content object
"Reusable information object" (RIO) is commonly used to mean
information objects that can be used repeatedly, whether for the same purpose
or for a different purpose.
"Repurposeable information object" (also, RIO) is not a term in
common use. In fact, it seems redundant because nearly any information object
can be put to another purpose. Still, it is the term chosen for use here
because it emphasizes the repurposing of objects, and their design to
facilitate repurposing, whether by that initial designer/instructor, or
whether they are repurposed by others.
"Sharable content object" (SCO) is a term used for objects that can
be shared among different users. Certain protocols can be employed to
facilitate this sharing, such as SCORM.
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Sharable Content Object
Reference Model (SCORM)
For the definitive word on this rather
new model designed to facilitate sharing of objects across platforms and
among users, see ADLNet's
SCORM Overview; ADLNet states:
"The Sharable Content Object Reference
Model (SCORM) defines a Web-based learning 'Content Aggregation Model' and
'Run-Time Environment' for learning objects. The SCORM is a collection of
specifications adapted from multiple sources to provide a comprehensive
suite of e-learning capabilities that enable interoperability, accessibility
and reusability of Web-based learning content."
There have been detractors, however. In
"SCORM is not for everyone," Dan Rehak states:
'Arguably the most remarkable part of
Rehak's briefing, however, was his clarification of the pedagogic issue. He
emphasized repeatedly that SCORM is not the right approach for higher and
primary education. According to Rehak, 'SCORM is essentially about a
single-learner, self-paced and self-directed. It has a limited pedagogical
model unsuited for some environments.' (Wilbert Kraan and Scott Wilson,
October 2, 2002)
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A reusable or repurposeable information or knowledge object can be
thought of as a self-contained piece of data or information that may be used
in a variety of contexts for different purposes. Teachers have been using RIOs
for years when they pull out overhead transparencies from one class to use for
a different purpose in another, such as using a graph to show how two
variables are related, or using the same graph to illustrate how graphs are
designed. RIOs are not new, but when we decide to put them online, they may
have an opportunity for more diverse use.
Have you noticed?
You might not have noticed, but the above text on SCORM is really an
individual Webpage located here, and included as dynamic content within this
larger page. Don't be fooled by the grey box. It is possible for information
objects to be included seamlessly in a Webpage. For example, unlike this
paragraph, the following paragraph with its heading is a separate RIO
published here.
Seamless Inclusion
It is possible to seamlessly include the content of one
Web page in another. This does not refer to "frames," but to code that actually
calls a "daughter page" and inserts its contents into a "parent page." When
the code for the daughter page is updated, there is no need to update any of
the numerous parent pages that may call data from that daughter page. Content included in this way is not limited to text, but can include graphics,
hyperlinks, and other Web page features.
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