Learning Object Metadata Standard: Difference between revisions

Revision as of 15:45, 10 July 2006

The Learning Object Metadata (LOM) standard specifies the syntax and semantics of Learning Object Metadata, defined as the attributes required to fully/adequately describe a Learning Object. Learning objects are defined here as any entity, digital or non-digital, which can be used, re-used or referenced during technology supported learning.

Learning Object Metadata is a data model, usually encoded in XML, used to describe a learning object and similar digital resources used to support learning. The purpose of learning object metadata is to support the reusability of learning objects, to aid discoverability, and to facilitate their interoperability, usually in the context of online learning management systems (LMS). ( [Wikipedia] retrieved 20:28, 3 July 2006 (MEST)]]

LOM is integrated in IMS Content Packaging. You can use LOM to describe the package as a whole, but also individual elements.

LOM was a reaction to Dublin Core used by many repositories, e.g. by DSPACE. Dublin Core was judged to be too simple for adequatly describing learning resources.

Originally LOM was proposed by IMS, later it was taken up by IEEE and the IEEE specification was in turn adopted by IMS. (Details are bit hairy, there are incompatibilities between older versions of different standards).

There are 9 sections:

The educational category contains roughly the following elements:

Element	Description
Interactivity Type (IEEE 1484.12.1-2002)	active: Active learning (e.g., learning by doing) is supported by content that directly induces productive action by the learner. expositive: Expositive learning (e.g., passive learning) occurs when the learner's job mainly consists of absorbing the content exposed to them. mixed: A blend of active and expositive interactivity types.
Learning Resource Type (IEEE best practice)	exercise, simulation, questionnaire, diagram, figure, graph, index, slide, table, narrative text, exam, experiment, problem statement, self assessment, lecture
Interactivity Level (IEEE 1484.12.1-2002 but meaningful only in community practice)	very low, low, medium, high, very high
Semantic Density (IEEE 1484.12.1-2002 but meaningful only in community practice)	very low, low, medium, high, very high
Intended End User Role (IEEE 1484.12.1-2002)	teacher author learner manager
Context (IEEE 1484.12.1-2002)	school higher education training other
Typical Age Range	(range)
Difficulty (IEEE 1484.12.1-2002 but meanigful only in a context of a community)	very easy easy medium difficult very difficult
typical Learning Time	open text element
description	open text element
language	standardized def.

IEEE LOM Data Model Standard (1484.12.1). This part of the LOM specifies a conceptual data schema that defines the structure of a metadata instance for a learning object. This corresponds to IMS Learning Resource Meta-data Information Model 1.2.1 and 1.2.2

IEEE LOM XML Binding (1484.12.3). This part of the LOM standard describes an XML binding to enable the exchange of LOM instances between conforming systems that implement the 1484.12.1 data model. This corresponds to IMS Learning Resource Meta-data XML Binding.

LOM is used by IMS compatible LMS. That means that LMS web-based editing ought to allow a user to enter metadata fields. Stand-alone software for authoring IMS Content Packaging compatible zip files that later can be imported into an LMS do have support for LOM (e.g. reload).

Sometimes, LOM is also used by stand-alone learning object repositories. Metadata are mostly entered separately from the learning object (e.g. through a web form), although DSchneider can imagine that some repository sofware also ought to able to read an IMS content package and extract the information.

@@ Line 162: / Line 162: @@
 [[Category: Technologies]]
 [[Category: Educational technologies]]
+[[Category: Standards]]