LOM Educational Ontology
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Transcript of LOM Educational Ontology
LOM Educational Ontology
• Αργυρώ Δαφέρμου Α.Μ. 1449• Δημήτρης Καμπάς ΜΕΤ 4• Τηλέμαχος Τζανάκης Α.Μ.1642
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Presentation Structure
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SeLeNe Project
e-learning Object
LOM (Learning Object Metadata)
Classes of ontology
Properties of ontology
SeLeNe Project
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What is SeLeNe Project
o An approach to provide a SELF e-learning network in order to support geographically distributed and highly heterogeneous learners.
o “Trying” to facilitate the formation of learning communities that require world-wide discovery and assimilate of knowledge by elaborating new educational tools.
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SeLeNe Objectives
Conduct a study of on-line educational resources and metadata, and of learners' and instructors' expectations of e-Learning systems.
Identify technologies for syndication and personalisation of educational resources.
Identify technologies for managing evolving RDF description bases, and design the high-level system architecture of a Self e-Learning Network.
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What is e-learning object
It describes a broad category of digital assets that can be used for learning, training, or knowledge development.
A learning object can be as small as a paragraph of text and as large as a 3 month online course.
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What is LOM
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Creation of well structured descriptions of learning resources
Sharing of descriptions of learning resources between resource discovery systems
Tailoring of the resource descriptions to suit the specialised needs of a community
Classes of Ontology (1/2)
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Homework Laboratory
Assignment
Exercise Exam
Classes of Ontology (2/2)
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Assignment (defined in other ontology): It refers to any kind of course work given during a semester.
Exercise: Is direct subclass of the Assignment class referring to actual exercises, homework or laboratories.
Exam: Is a direct subclass of the Assignment class referring to actual exams.
Laboratory: Is a direct subclass of the Exercise class referring to course laboratories conducted during a semester.
Homework: Is a direct subclass of the Exercise class referring to Course homework assigned to students during a semester.
Properties of Ontology (1/9)
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1st Final
Exam PeriodMidterm
2nd Final
Period: This property indicates the examinations period during which an exam was carried out, i.e. Midterm, Finals (1st period), Finals (2nd period)
Properties of Ontology (2/9)
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interactivityType:Predominant mode of learning supported by this learning object. Possible values : Active, Expositive, Mixed
Expositivee-Learning Object
Interactivity Type
Active
Mixed
Properties of Ontology (3/9)
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e-Learning Object
InteractivityLevel
Medium
HighVery High
Very Low
Low
interactivityLevel: Provides the degree of interactivity characterizing this learning object. It refers to the degree to which the learner can influence the aspect or behavior of the learning object. Possible values: Very Low, Low, Medium, High, Very High
Properties of Ontology (4/9)
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semanticDensitye-Learning Object
Medium
High
Very High
Very Low
Low
semanticDensity: The degree of conciseness of a learning object. The semantic density of a learning object may be estimated in terms of its size, span, or --in the case of self-timed resources such as audio or video-- duration.The semantic density of a learning object is independent of its difficulty. Possible values: Very Low, Low, Medium, High, Very High
Properties of Ontology (5/9)
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intendedEndUserRole: Principal user(s) for which this learning object was designed, most dominant first, i.e. "learner". Possible values: Teacher, Author, Learner, Manager
e-Learning Object Intended End
User Role
Teacher
LearnerManager
Author
Properties of Ontology (6/9)
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context: The principal environment within which the learning and use of this learning object is intended to take place.Possible values: School, HigherEducation, Training, Other.
Higher EducationContext
e-Learning Object
School
Training
Other
Properties of Ontology (7/9)
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TypicalAgeRange: Age of the typical intended user. This data element shall refer to developmental age, if that would be different from chronological age, i.e. "18-70".
e-Learning Object
Typical Age Range String
Properties of Ontology (8/9)
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Difficultye-Learning Object
Medium
Difficult
Very Difficult
Very Easy
Easy
Difficulty: How hard it is to work with or through this learning object for the typical intended target audience. Possible values: Very Easy, Easy, Medium, Difficult, Very Difficult.
Properties of Ontology (9/9)
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e-Learning Object
Typical Learning Time String
typicalLearningTime: Approximate or typical time it takes to work with or through this learning object for the typical intended target audience, i.e. "P4M" (holds for 4 months).