LOM Educational Ontology

1. LOM Educational Ontology Αργυρώ Δαφέρμου Α.Μ. 1449 Δημήτρης Καμπάς ΜΕΤ 4 Τηλέμαχος Τζανάκης Α.Μ.1642 566 - Αναπαράσταση γνώσης στο διαδίκτυο

2. Presentation Structure • SeLeNe Project • e-learning Object • LOM (Learning Object Metadata) • Classes of ontology • Properties of ontology 566 - Αναπαράσταση γνώσης στο διαδίκτυο

3. SeLeNe Project 566 - Αναπαράσταση γνώσης στο διαδίκτυο

4. What is SeLeNe Project • An approach to provide a SELF e-learning network in order to support geographically distributed and highly heterogeneous learners. • “Trying” to facilitate the formation of learning communities that require world-wide discovery and assimilate of knowledge by elaborating new educational tools. 566 - Αναπαράσταση γνώσης στο διαδίκτυο

5. 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. 566 - Αναπαράσταση γνώσης στο διαδίκτυο

6. 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. 566 - Αναπαράσταση γνώσης στο διαδίκτυο

7. What is LOM • 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 566 - Αναπαράσταση γνώσης στο διαδίκτυο

8. Classes of Ontology (1/2) Assignment Exercise Exam Homework Laboratory 566 - Αναπαράσταση γνώσης στο διαδίκτυο

9. Classes of Ontology (2/2) • 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. 566 - Αναπαράσταση γνώσης στο διαδίκτυο

10. Properties of Ontology (1/9) Exam Period: This property indicates the examinations period during which an exam was carried out, i.e. Midterm, Finals (1st period), Finals (2nd period) 1st Final Period 2nd Final Midterm 566 - Αναπαράσταση γνώσης στο διαδίκτυο

11. Properties of Ontology (2/9) e-Learning Object interactivityType:Predominant mode of learning supported by this learning object. Possible values : Active, Expositive, Mixed Expositive Interactivity Type Active Mixed 566 - Αναπαράσταση γνώσης στο διαδίκτυο

12. Properties of Ontology (3/9) 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 e-Learning Object InteractivityLevel High Low Medium Very High Very Low 566 - Αναπαράσταση γνώσης στο διαδίκτυο

13. Properties of Ontology (4/9) 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 e-Learning Object semanticDensity High Low Medium Very High Very Low 566 - Αναπαράσταση γνώσης στο διαδίκτυο

14. Properties of Ontology (5/9) e-Learning Object intendedEndUserRole: Principal user(s) for which this learning object was designed, most dominant first, i.e. "learner". Possible values: Teacher, Author, Learner, Manager Teacher Author Learner Manager Intended End User Role 566 - Αναπαράσταση γνώσης στο διαδίκτυο

15. Properties of Ontology (6/9) e-Learning Object 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. Context School Training Other Higher Education 566 - Αναπαράσταση γνώσης στο διαδίκτυο

16. Properties of Ontology (7/9) e-Learning Object 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". Typical Age Range String 566 - Αναπαράσταση γνώσης στο διαδίκτυο

17. Properties of Ontology (8/9) 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. e-Learning Object Difficulty Difficult Easy Medium Very Difficult Very Easy 566 - Αναπαράσταση γνώσης στο διαδίκτυο

18. Properties of Ontology (9/9) e-Learning Object 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). Typical Learning Time String 566 - Αναπαράσταση γνώσης στο διαδίκτυο